diff --git a/utils_maintenance/autopep8_format_paths.py b/utils_maintenance/autopep8_format_paths.py
index 100a308364b8..36ed84bec433 100644
--- a/utils_maintenance/autopep8_format_paths.py
+++ b/utils_maintenance/autopep8_format_paths.py
@@ -35,7 +35,7 @@ def compute_paths(paths, use_default_paths):
     else:
         paths = [
             f for f in paths
-            if os.path.isfile(f) and f.endswith(extensions)
+            if not os.path.isfile(f) or f.endswith(extensions)
         ]
 
     if os.sep != "/":
diff --git a/utils_maintenance/clang_format_paths.py b/utils_maintenance/clang_format_paths.py
index e81d487c294b..cd702e84647c 100755
--- a/utils_maintenance/clang_format_paths.py
+++ b/utils_maintenance/clang_format_paths.py
@@ -64,7 +64,7 @@ def compute_paths(paths, use_default_paths):
         # "Operating" on files that will be filtered out later on.
         paths = [
             f for f in paths
-            if os.path.isfile(f) and f.endswith(extensions)
+            if not os.path.isfile(f) or f.endswith(extensions)
         ]
 
     if os.sep != "/":