diff --git a/crates/hir-def/src/macro_expansion_tests/mbe.rs b/crates/hir-def/src/macro_expansion_tests/mbe.rs
index 9bf2a50d57c..57dc50fb70d 100644
--- a/crates/hir-def/src/macro_expansion_tests/mbe.rs
+++ b/crates/hir-def/src/macro_expansion_tests/mbe.rs
@@ -1218,8 +1218,10 @@ macro_rules! m {
 macro_rules! m {
     ($(#[$m:meta])+) => ( $(#[$m])+ fn bar() {} )
 }
-#[doc = " Single Line Doc 1"]
-#[doc = "\n        MultiLines Doc\n    "] fn bar() {}
+#[doc = r" Single Line Doc 1"]
+#[doc = "
+        MultiLines Doc
+    "] fn bar() {}
 "##]],
     );
 }
@@ -1260,8 +1262,10 @@ macro_rules! m {
 macro_rules! m {
     ($(#[$ m:meta])+) => ( $(#[$m])+ fn bar() {} )
 }
-#[doc = " 錦瑟無端五十弦，一弦一柱思華年。"]
-#[doc = "\n        莊生曉夢迷蝴蝶，望帝春心託杜鵑。\n    "] fn bar() {}
+#[doc = r" 錦瑟無端五十弦，一弦一柱思華年。"]
+#[doc = r"
+        莊生曉夢迷蝴蝶，望帝春心託杜鵑。
+    "] fn bar() {}
 "##]],
     );
 }
@@ -1281,7 +1285,7 @@ macro_rules! m {
 macro_rules! m {
     ($(#[$m:meta])+) => ( $(#[$m])+ fn bar() {} )
 }
-#[doc = " \\ \" \'"] fn bar() {}
+#[doc = r#" \ " '"#] fn bar() {}
 "##]],
     );
 }
diff --git a/crates/mbe/src/syntax_bridge.rs b/crates/mbe/src/syntax_bridge.rs
index 3440c1dd8ca..77bda1f9af3 100644
--- a/crates/mbe/src/syntax_bridge.rs
+++ b/crates/mbe/src/syntax_bridge.rs
@@ -406,9 +406,20 @@ fn doc_comment_text(comment: &ast::Comment) -> SmolStr {
         text = &text[0..text.len() - 2];
     }
 
-    // Quote the string
+    let mut num_of_hashes = 0;
+    let mut count = 0;
+    for ch in text.chars() {
+        count = match ch {
+            '"' => 1,
+            '#' if count > 0 => count + 1,
+            _ => 0,
+        };
+        num_of_hashes = num_of_hashes.max(count);
+    }
+
+    // Quote raw string with delimiters
     // Note that `tt::Literal` expect an escaped string
-    let text = format!("\"{}\"", text.escape_debug());
+    let text = format!("r{delim}\"{text}\"{delim}", delim = "#".repeat(num_of_hashes));
     text.into()
 }