diff --git a/compile_database.py b/compile_database.py
index badfebd..9380030 100644
--- a/compile_database.py
+++ b/compile_database.py
@@ -251,6 +251,7 @@ def new_file(self, filename):
         return module_files
 
 def newfileForCompileFile(filename, compileFile, store) -> Optional[set[str]]:
+    if not compileFile: return None
     info = compileFileInfoFromStore(compileFile, store)
     return info.new_file(filename)