diff --git a/build.py b/build.py
index 4e4cc4d6..27c1b0d6 100644
--- a/build.py
+++ b/build.py
@@ -30,7 +30,7 @@ def build_file(source_path, destination_path, source_if_missing):
             shutil.copy(source_if_missing, destination_path)
         else:
             # No warning for lit files, since not all maps have them
-            if not destination_path.endswith(".lit"): 
+            if not destination_path.endswith(".lit"):
                 warnings.warn(f"Missing file with no substitute: {source_path}")