diff --git a/packages/devtools_app/lib/src/shared/console/eval/auto_complete.dart b/packages/devtools_app/lib/src/shared/console/eval/auto_complete.dart
index f0277067c3a..9214f94c97d 100644
--- a/packages/devtools_app/lib/src/shared/console/eval/auto_complete.dart
+++ b/packages/devtools_app/lib/src/shared/console/eval/auto_complete.dart
@@ -201,6 +201,7 @@ Future<Set<String>> _libraryMemberAutocompletes(
   if (classes != null) {
     // Autocomplete class names as well
     final classNames = classes.map((clazz) => clazz.name);
+    // ignore: avoid-unnecessary-type-assertions
     result.addAll(classNames.nonNulls);
   }