diff --git a/.github/workflows/ci_validate_tiles.py b/.github/workflows/ci_validate_tiles.py
index 16e343bd1..87fa4d0ba 100755
--- a/.github/workflows/ci_validate_tiles.py
+++ b/.github/workflows/ci_validate_tiles.py
@@ -2,6 +2,7 @@
 
 import re
 from pathlib import Path
+import sys
 import typing
 import tomlkit
 import tomlkit.items