diff --git a/spec/controllers/user_avatars_controller_spec.rb b/spec/controllers/user_avatars_controller_spec.rb
index 603a60a441e..7ecb5c48181 100644
--- a/spec/controllers/user_avatars_controller_spec.rb
+++ b/spec/controllers/user_avatars_controller_spec.rb
@@ -24,6 +24,7 @@ describe UserAvatarsController do
       SiteSetting.s3_upload_bucket = "test"
       SiteSetting.s3_cdn_url = "http://cdn.com"
 
+      Excon.stub({ method: :head, hostname: 'cdn.com' }, {})
       stub_request(:get, "http://cdn.com/something/else").to_return(body: 'image')
 
       GlobalSetting.expects(:cdn_url).returns("http://awesome.com/boom")