diff --git a/README.md b/README.md
index 5da3e07..dc30a60 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ OR, on Ubuntu,
   - `-s` : match any of the keywords in URL or title. Order is irrelevant.
   - `-S` : match all the keywords in URL or title. Order is irrelevant.
   - Search results are indexed serially. This index is different from actual database index of a bookmark reord which is shown within `()` after the URL.
-- Encryption support is manual. Database file should be unlocked (`-k`) before using buku and locked (`-l`) afterwards. Note that the database file is <i>unecrypted on creation</i>. AES256 is used for encryption. User can specify (`-t`) the number of hash iterations to use to generate key.
+- Encryption support is manual. Database file should be unlocked (`-k`) before using buku and locked (`-l`) afterwards. Note that the database file is <i>unecrypted on creation</i>. AES256 is used for encryption. Optionally specify (`-t`) the number of hash iterations to use to generate key. Default is 8 iterations.
   
 <b>Cmdline help:</b>
   
@@ -97,7 +97,7 @@ Options
   -R                         refresh all bookmarks, tags retained
   -s keyword(s)              search all bookmarks for a (partial) tag or any keyword
   -S keyword(s)              search all bookmarks for a (partial) tag or all keywords
-  -t N                       use N (> 0) iterations to generate key, works with -k, -l
+  -t N                       use N (> 0) hash iterations to generate key, works with -k, -l
   -u N                       update entry at DB index N
   -w                         fetch title info from web, works with -a, -i, -u
   -x N                       works with -P, N=1: show only URL, N=2: show URL and tag
diff --git a/buku b/buku
index 8c1c95f..2be777c 100755
--- a/buku
+++ b/buku
@@ -84,7 +84,7 @@ def usage():
     print("  -R                         refresh all bookmarks, tags retained")
     print("  -s keyword(s)              search all bookmarks for a (partial) tag or any keyword")
     print("  -S keyword(s)              search all bookmarks for a (partial) tag or all keywords")
-    print("  -t N                       use N (> 0) iterations to generate key, works with -k, -l")
+    print("  -t N                       use N (> 0) hash iterations to generate key, works with -k, -l")
     print("  -u N                       update entry at DB index N")
     print("  -w                         fetch title info from web, works with -a, -i, -u")
     print("  -x N                       works with -P, N=1: show only URL, N=2: show URL and tag")
diff --git a/buku.1 b/buku.1
index 165bafc..55202ab 100644
--- a/buku.1
+++ b/buku.1
@@ -26,7 +26,7 @@ Search works in mysterious ways:
   - '-S' : match all the keywords in URL or title. Order is irrelevant. 
   - Search results are indexed serially. This index is different from actual database index of a bookmark reord which is shown within '()' after the URL.
 .PP
-Encryption support is manual. Database file should be unlocked ('-k') before using buku and locked ('-l') afterwards. Note that the database file is unecrypted on creation. AES256 is used for encryption.
+Encryption support is manual. Database file should be unlocked ('-k') before using buku and locked ('-l') afterwards. Note that the database file is unecrypted on creation. AES256 is used for encryption. Optionally specify ('-t') the number of hash iterations to use to generate key. Default is 8 iterations.
 .SH OPTIONS
 .TP
 .BI \-a " URL" " " "tag 1", " tag 2", " ..."
@@ -75,6 +75,11 @@ Search bookmarks for a (partial) tag or any keyword and show the results. Prompt
 .BI \-S " keywords"
 Search bookmarks for a (partial) tag or occurrence of all keywords in URL or title and show the results. Rest same as '-s'.
 .TP
+.BI \-t " N"
+Use
+.I N
+(> 0) hash iterations to generate key, works with '-k', '-l'.
+.TP
 .BI \-u " N"
 Update bookmark at index
 .I N