diff --git a/tools/python/maps_generator/utils/file.py b/tools/python/maps_generator/utils/file.py
index b2af0b953b..9bca369d12 100644
--- a/tools/python/maps_generator/utils/file.py
+++ b/tools/python/maps_generator/utils/file.py
@@ -40,7 +40,7 @@ def file_uri_to_path(url : AnyStr) -> AnyStr:
     return file_path
 
 def is_executable(fpath: AnyStr) -> bool:
-    return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
+    return fpath is not None and os.path.isfile(fpath) and os.access(fpath, os.X_OK)
 
 
 @functools.lru_cache()