2 files changed, 23 insertions, 3 deletions

diff --git a/crates/mbe/src/syntax_bridge.rs b/crates/mbe/src/syntax_bridge.rs
index 9d433b3b0..cfab99da8 100644
--- a/crates/mbe/src/syntax_bridge.rs
+++ b/crates/mbe/src/syntax_bridge.rs
@@ -213,7 +213,7 @@ fn doc_comment_text(comment: &ast::Comment) -> SmolStr {
 
     // Quote the string
     // Note that `tt::Literal` expect an escaped string
-    let text = format!("{:?}", text.escape_debug().to_string());
+    let text = format!("\"{}\"", text.escape_debug());
     text.into()
 }
 
diff --git a/crates/mbe/src/tests/expand.rs b/crates/mbe/src/tests/expand.rs
index 8951f3813..84f19d3e2 100644
--- a/crates/mbe/src/tests/expand.rs
+++ b/crates/mbe/src/tests/expand.rs
@@ -921,7 +921,7 @@ fn test_meta_doc_comments() {
                 MultiLines Doc
             */
         }"#,
-        "# [doc = \" Single Line Doc 1\"] # [doc = \"\\\\n                MultiLines Doc\\\\n            \"] fn bar () {}",
+        "# [doc = \" Single Line Doc 1\"] # [doc = \"\\n                MultiLines Doc\\n            \"] fn bar () {}",
     );
 }
 
@@ -944,7 +944,27 @@ fn test_meta_doc_comments_non_latin() {
                 莊生曉夢迷蝴蝶，望帝春心託杜鵑。
             */
         }"#,
-        "# [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 = \" 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 () {}",
+    );
+}
+
+#[test]
+fn test_meta_doc_comments_escaped_characters() {
+    parse_macro(
+        r#"
+        macro_rules! foo {
+            ($(#[$ i:meta])+) => (
+                $(#[$ i])+
+                fn bar() {}
+            )
+        }
+"#,
+    )
+    .assert_expand_items(
+        r#"foo! {
+            /// \ " '
+        }"#,
+        r#"# [doc = " \\ \" \'"] fn bar () {}"#,
     );
 }