diff --git a/javascript/ql/lib/LanguageFeatures/UnusedIndexVariable.qll b/javascript/ql/lib/LanguageFeatures/UnusedIndexVariable.qll
index ed53158d51c..e8b235eca9b 100644
--- a/javascript/ql/lib/LanguageFeatures/UnusedIndexVariable.qll
+++ b/javascript/ql/lib/LanguageFeatures/UnusedIndexVariable.qll
@@ -1,6 +1,8 @@
 /**
  * Provides a predicate for identifying unused index variables in loops.
  */
+overlay[local]
+module;
 
 import javascript