diff --git a/autogenerate_config_docs/autohelp.py b/autogenerate_config_docs/autohelp.py
index 84bddee..25e30d5 100755
--- a/autogenerate_config_docs/autohelp.py
+++ b/autogenerate_config_docs/autohelp.py
@@ -578,6 +578,7 @@ def update_flagmappings(package_name, options, verbose=0):
     """
     if not _use_categories:
         print("This project does not use flagmappings. Nothing to update.")
+        return
 
     original_flags = {}
     try: