diff --git a/qcloud_cos/test.py b/qcloud_cos/test.py
index 077291de..fbf81da4 100644
--- a/qcloud_cos/test.py
+++ b/qcloud_cos/test.py
@@ -161,7 +161,7 @@ def Test():
     )
 
     print "Test Delete Object " + file_name
-    response = client.head_object(
+    response = client.delete_object(
         Bucket=test_bucket,
         Key=file_name
     )