diff --git a/helix-term/src/ui/mod.rs b/helix-term/src/ui/mod.rs
index 8ca1b131..215794e3 100644
--- a/helix-term/src/ui/mod.rs
+++ b/helix-term/src/ui/mod.rs
@@ -142,9 +142,6 @@ pub fn regex_prompt(
                                 };
 
                                 cx.jobs.callback(callback);
-                            } else {
-                                // Update
-                                // TODO: mark command line as error
                             }
                         }
                     }
diff --git a/runtime/queries/regex/highlights.scm b/runtime/queries/regex/highlights.scm
index cad08f40..302cc6b3 100644
--- a/runtime/queries/regex/highlights.scm
+++ b/runtime/queries/regex/highlights.scm
@@ -50,4 +50,4 @@
   ])
 
 (class_character) @constant.character
-(pattern_character) @string
+(ERROR) @error