diff --git a/README.md b/README.md
index d1857e9..811e63a 100644
--- a/README.md
+++ b/README.md
@@ -152,6 +152,9 @@ Shell completion scripts for Bash, Fish and Zsh can be found in respective subdi
                            -a: do not set title, -u: clear title
       -c, --comment [...]  description of the bookmark, works with
                            -a, -u; clears comment, if no arguments
+      --immutable N        disable title fetch from web during update
+                           works with -a, -u
+                           N=0: mutable (default), N=1: immutable
 
     search options:
       -s, --sany keyword [...]
@@ -218,7 +221,7 @@ Shell completion scripts for Bash, Fish and Zsh can be found in respective subdi
 - **Update** operation:
   - If --title, --tag or --comment is passed without argument, clear the corresponding field from DB.
   - If --url is passed (and --title is omitted), update the title from web using the URL.
-  - If indices are passed without any other options (--url, --title, --tag and --comment), read the URLs from DB and update titles from web.
+  - If indices are passed without any other options (--url, --title, --tag, --comment and --immutable), read the URLs from DB and update titles from web. Bookmarks marked immutable are skipped.
 - **Delete** operation:
   - When a record is deleted, the last record is moved to the index.
   - Delete doesn't work with range and indices provided together as arguments. It's an intentional decision to avoid extra sorting, in-range checks and to keep the auto-DB compaction functionality intact. On the same lines, indices are deleted in descending order.
@@ -308,9 +311,9 @@ Once exported, import the html file in your browser.
         + Informative website on Linux and open source
         # linux news,open source
 where, >: title, +: comment, #: tags
-2. **Add** a bookmark with tags `linux news` and `open source` & **custom title** `Linux magazine`:
+2. **Add** a bookmark with tags `linux news` and `open source` & **immutable custom title** `Linux magazine`:
 
-        $ buku -a http://tuxdiary.com linux news, open source -t 'Linux magazine'
+        $ buku -a http://tuxdiary.com linux news, open source -t 'Linux magazine' --immutable 1
         Added at index 15012014
 Note that URL must precede tags.
 3. **Add** a bookmark **without a title** (works for update too):
diff --git a/buku b/buku
index 31553c1..4386b74 100755
--- a/buku
+++ b/buku
@@ -287,18 +287,17 @@ class BukuCrypt:
 
 class BukuDb:
 
-    def __init__(self, json=False, field_filter=0):
+    def __init__(self, json=False, field_filter=0, immutable=-1):
         '''Database initialization API
 
         :param json: print results in json format
         :param field_filter: bookmark print format specifier
         '''
 
-        conn, cur = BukuDb.initdb()
-        self.conn = conn
-        self.cur = cur
+        self.conn, self.cur = BukuDb.initdb()
         self.json = json
         self.field_filter = field_filter
+        self.immutable = immutable
 
     @staticmethod
     def get_dbdir_path():
@@ -400,6 +399,18 @@ class BukuDb:
         except Exception:
             pass
 
+        '''Add flags column in existing DB
+        Introduced in v2.7 to handle immutable title
+        Designed to be extended in future using bitwise masks
+        Masks:
+        0b00000001: set title immutable'''
+        try:
+            query = 'ALTER TABLE bookmarks ADD COLUMN flags integer default 0'
+            cur.execute(query)
+            conn.commit()
+        except Exception:
+            pass
+
         return (conn, cur)
 
     def get_bm_by_id(self, index):
@@ -476,9 +487,13 @@ class BukuDb:
             desc = ''
 
         try:
-            query = 'INSERT INTO bookmarks(URL, metadata, tags, desc) \
-                    VALUES (?, ?, ?, ?)'
-            self.cur.execute(query, (url, meta, tags_in, desc))
+            flagset = 0
+            if self.immutable == 1:
+                flagset |= self.immutable
+
+            query = 'INSERT INTO bookmarks(URL, metadata, tags, desc, flags) \
+                    VALUES (?, ?, ?, ?, ?)'
+            self.cur.execute(query, (url, meta, tags_in, desc, flagset))
             if not delay_commit:
                 self.conn.commit()
             if verbose:
@@ -618,14 +633,26 @@ class BukuDb:
             arguments += (desc,)
             to_update = True
 
+        # Update immutable flag if passed as argument
+        if self.immutable != -1:
+            flagset = 1
+            if self.immutable:
+                query = '%s flags = flags | ?,' % query
+            else:
+                query = '%s flags = flags & ?,' % query
+                flagset = ~flagset
+
+            arguments += (flagset,)
+            to_update = True
+
         # Update title
         #
         # 1. if -t has no arguments, delete existing title
         # 2. if -t has arguments, update existing title
         # 3. if -t option is omitted at cmdline:
         #    if URL is passed, update the title from web using the URL
-        # 4. if no other argument (url, tag, comment) passed,
-        #    update title from web using DB URL
+        # 4. if no other argument (url, tag, comment, immutable) passed,
+        #    update title from web using DB URL (if title is mutable)
         meta = None
         if title_in is not None:
             meta = title_in
@@ -686,10 +713,11 @@ class BukuDb:
         '''
 
         if index == 0:
-            self.cur.execute('SELECT id, url FROM bookmarks ORDER BY id ASC')
+            self.cur.execute('SELECT id, url FROM bookmarks WHERE \
+                             flags & 1 != 1 ORDER BY id ASC')
         else:
-            self.cur.execute('SELECT id, url FROM bookmarks WHERE id = ?',
-                             (index,))
+            self.cur.execute('SELECT id, url FROM bookmarks WHERE id = ? AND \
+                             flags & 1 != 1', (index,))
 
         resultset = self.cur.fetchall()
         query = 'UPDATE bookmarks SET metadata = ? WHERE id = ?'
@@ -1878,7 +1906,10 @@ if __name__ == '__main__':
                      if no arguments:
                      -a: do not set title, -u: clear title
 -c, --comment [...]  description of the bookmark, works with
-                     -a, -u; clears comment, if no arguments''')
+                     -a, -u; clears comment, if no arguments
+--immutable N        disable title fetch from web during update
+                     works with -a, -u
+                     N=0: mutable (default), N=1: immutable''')
     addarg = edit_grp.add_argument
     addarg('--url', nargs=1, dest='url', metavar='url', help=argparse.SUPPRESS)
     addarg('--tag', nargs='*', dest='tag', action=CustomTagAction,
@@ -1887,6 +1918,8 @@ if __name__ == '__main__':
            metavar='title', help=argparse.SUPPRESS)
     addarg('-c', '--comment', nargs='*', dest='desc', type=str,
            action=CustomDescAction, metavar='desc', help=argparse.SUPPRESS)
+    addarg('--immutable', type=int, default=-1,
+           choices=[0, 1], metavar='N', help=argparse.SUPPRESS)
 
     # Search options group
     search_grp = argparser.add_argument_group(
@@ -2009,7 +2042,7 @@ if __name__ == '__main__':
         BukuCrypt.decrypt_file(args.decrypt)
 
     # Initialize the database and get handles
-    bdb = BukuDb(args.json_output, args.field_filter)
+    bdb = BukuDb(args.json_output, args.field_filter, args.immutable)
 
     # Add a record
     if args.addurl is not None:
diff --git a/buku.1 b/buku.1
index bcd556a..343ac53 100644
--- a/buku.1
+++ b/buku.1
@@ -35,16 +35,16 @@ URLs are unique in DB. The same URL cannot be added twice.
 \fITags\fR:
   - Comma (',') is the tag delimiter in DB. A tag cannot have comma(s) in it. Tags are filtered (for unique tags) and sorted. Tags can be replaced.
 .PP
+\fIUpdate\fR operation:
+  - If --title, --tag or --comment is passed without argument, clear the corresponding field from DB.
+  - If --url is passed (and --title is omitted), update the title from web using the URL.
+  - If indices are passed without any other options (--url, --title, --tag, --comment and --immutable), read the URLs from DB and update titles from web. Bookmarks marked immutable are skipped.
+.PP
 \fIDelete\fR operation:
   - When a record is deleted, the last record is moved to the index.
   - Delete doesn't work with range and indices provided together as arguments. It's an intentional decision to avoid extra sorting, in-range checks and to keep the auto-DB compaction functionality intact. On the same lines, indices are deleted in descending order.
   - Can delete bookmarks matching a search, when combined with any of the search options.
 .PP
-\fIUpdate\fR operation:
-  - If --title, --tag or --comment is passed without argument, clear the corresponding field from DB.
-  - If --url is passed (and --title is omitted), update the title from web using the URL.
-  - If indices are passed without any other options (--url, --title, --tag and --comment), read the URLs from DB and update titles from web.
-.PP
 \fISearch\fR works in mysterious ways:
   - Case-insensitive.
   - Matches exact words in URL, title and tags.
@@ -84,6 +84,9 @@ Manually specify the title, works with --add, --update. Omits or clears the titl
 .TP
 .BI \-c " " \--comment " [...]"
 Add comment or description on the bookmark, works with --add, --update. Clears the comment, if no arguments passed.
+.TP
+.BI \--immutable " N"
+Set the title of a bookmark immutable during updates. Works with --add, --update. N=1 sets the immutable flag, N=0 removes it. If omitted, bookmarks are added with N=0.
 .SH SEARCH OPTIONS
 .TP
 .BI \-s " " \--sany " keyword [...]"
@@ -149,7 +152,7 @@ Replace
 .I oldtag
 with
 .I newtag
-if both are passed, delete
+if both are passed; delete
 .I oldtag
 if
 .I newtag
@@ -196,11 +199,11 @@ Overrides the default browser. Ref:
 In the output, >: title, +: comment, #: tags.
 .PP
 .IP 2. 4
-\fBAdd\fR a bookmark with tags 'linux news' and 'open source' & \fBcustom title\fR 'Linux magazine':
+\fBAdd\fR a bookmark with tags 'linux news' and 'open source' & \fBimmutable custom title\fR 'Linux magazine':
 .PP
 .EX
 .IP
-.B buku -a http://tuxdiary.com linux news, open source -t 'Linux magazine'
+.B buku -a http://tuxdiary.com linux news, open source -t 'Linux magazine' --immutable 1
 .EE
 .PP
 .IP "" 4