diff --git a/check_move.py b/check_move.py
index 921f3f641af5e..12f7563213343 100755
--- a/check_move.py
+++ b/check_move.py
@@ -56,11 +56,12 @@ def process_md_file(file_path):
                     full_path += ".md"
 
                 for [from_path, to_path] in move_pairs:
+                    # Skip change of suffix
                     from_base, from_ext = os.path.splitext(from_path)
                     to_base, to_ext = os.path.splitext(to_path)
-                    if (from_ext in [".md", ".mdx"] and to_ext in [".md", ".mdx"]) and (
-                        from_base == to_base
-                    ):
+                    if (
+                        from_ext in [".md", ".mdx", ""] or to_ext in [".md", ".mdx", ""]
+                    ) and (from_base == to_base):
                         continue
                     # In md, the link relative path starts from the directory where the document is located, not the document
                     relative_to_path = os.path.relpath(