diff --git a/.github/workflows/update_directory_md.yml b/.github/workflows/update_directory_md.yml
index c25ec788..6b161c6a 100644
--- a/.github/workflows/update_directory_md.yml
+++ b/.github/workflows/update_directory_md.yml
@@ -20,7 +20,7 @@ jobs:
 
 
             def good_filepaths(top_dir: str = ".") -> Iterator[str]:
-                cpp_exts = tuple(".c .c++ .cc .cpp .cu .cuh .cxx .h .h++ .hh .hpp .hxx".split())
+                cpp_exts = tuple(".c .c++ .cc .cpp .cu .cxx".split())
                 for dirpath, dirnames, filenames in os.walk(top_dir):
                     dirnames[:] = [d for d in dirnames if d[0] not in "._"]
                     for filename in filenames: