diff --git a/aqt/importing.py b/aqt/importing.py
index 2e7d6d0cc..3410f4c63 100644
--- a/aqt/importing.py
+++ b/aqt/importing.py
@@ -255,14 +255,13 @@ def onImport(mw):
     importFile(mw, file)
 
 def importFile(mw, file):
-    ext = os.path.splitext(file)[1]
     importer = None
     done = False
     for i in importing.Importers:
         if done:
             break
         for mext in re.findall("[( ]?\*\.(.+?)[) ]", i[0]):
-            if ext == "." + mext:
+            if file.endswith("." + mext):
                 importer = i[1]
                 done = True
                 break