diff --git a/sysroot/scout-builds.py b/sysroot/scout-builds.py
index 1278b71f7c3a9b4b46ef31c89bcf8e34de3a5b28..23a1e05706e33dbdd1dd8f12558298b689638684 100755
--- a/sysroot/scout-builds.py
+++ b/sysroot/scout-builds.py
@@ -216,6 +216,8 @@ def main():
     else:
         raise AssertionError
 
+    return 0
+
 
 if __name__ == '__main__':
     sys.exit(main())