diff --git a/python/extractor/semmle/query_gen.py b/python/extractor/semmle/query_gen.py
index b3fc2442e8a..e7f9d280ad1 100644
--- a/python/extractor/semmle/query_gen.py
+++ b/python/extractor/semmle/query_gen.py
@@ -211,6 +211,8 @@ HEADER = '''/**
  *      WARNING: Any modifications to this file will be lost.
  *      Relations can be changed by modifying master.py.
  */
+overlay[local]
+module;
 '''
 
 def main():