diff --git a/src/test/ui/parser/match-vec-invalid.stderr b/src/test/ui/parser/match-vec-invalid.stderr
index 0de9a7523475..49d5a83c5a9f 100644
--- a/src/test/ui/parser/match-vec-invalid.stderr
+++ b/src/test/ui/parser/match-vec-invalid.stderr
@@ -11,7 +11,7 @@ LL |         [1, tail @ .., tail @ ..] => {},
    |             ^^^^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/62254
-   = help: add #![feature(slice_patterns)] to the crate attributes to enable
+   = help: add `#![feature(slice_patterns)]` to the crate attributes to enable
 
 error[E0658]: subslice patterns are unstable
   --> $DIR/match-vec-invalid.rs:4:24
@@ -20,7 +20,7 @@ LL |         [1, tail @ .., tail @ ..] => {},
    |                        ^^^^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/62254
-   = help: add #![feature(slice_patterns)] to the crate attributes to enable
+   = help: add `#![feature(slice_patterns)]` to the crate attributes to enable
 
 error: `..` can only be used once per slice pattern
   --> $DIR/match-vec-invalid.rs:4:31
diff --git a/src/test/ui/parser/pat-lt-bracket-6.stderr b/src/test/ui/parser/pat-lt-bracket-6.stderr
index d526addeb796..45270b314a9b 100644
--- a/src/test/ui/parser/pat-lt-bracket-6.stderr
+++ b/src/test/ui/parser/pat-lt-bracket-6.stderr
@@ -23,7 +23,7 @@ LL |     let Test(&desc[..]) = x;
    |                    ^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/62254
-   = help: add #![feature(slice_patterns)] to the crate attributes to enable
+   = help: add `#![feature(slice_patterns)]` to the crate attributes to enable
 
 error: aborting due to 4 previous errors
 
diff --git a/src/test/ui/parser/pat-tuple-4.stderr b/src/test/ui/parser/pat-tuple-4.stderr
index 2e1c167b871b..d126163476c9 100644
--- a/src/test/ui/parser/pat-tuple-4.stderr
+++ b/src/test/ui/parser/pat-tuple-4.stderr
@@ -23,7 +23,7 @@ LL |         (.. pat) => {}
    |          ^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
-   = help: add #![feature(exclusive_range_pattern)] to the crate attributes to enable
+   = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
 
 error[E0029]: only char and numeric types are allowed in range patterns
   --> $DIR/pat-tuple-4.rs:3:10
diff --git a/src/test/ui/parser/pat-tuple-5.stderr b/src/test/ui/parser/pat-tuple-5.stderr
index 9f0118e95736..06f2a59d9090 100644
--- a/src/test/ui/parser/pat-tuple-5.stderr
+++ b/src/test/ui/parser/pat-tuple-5.stderr
@@ -23,7 +23,7 @@ LL |         (pat ..) => {}
    |          ^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
-   = help: add #![feature(exclusive_range_pattern)] to the crate attributes to enable
+   = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
 
 error[E0029]: only char and numeric types are allowed in range patterns
   --> $DIR/pat-tuple-5.rs:3:10