diff --git a/appveyor.yml b/appveyor.yml
index 96b0cb8..2ef4c3a 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -42,8 +42,9 @@ after_test:
   # Upload to pypi.
   # More precisely. Upload pypi the master builds, and to test-pypi any other builds.
   # See more at https://stackoverflow.com/a/33662275/2506522
-  - git branch | find "* master" > NUL & IF ERRORLEVEL 1 (  
-      twine upload -r testpypi dist\\wexpect*.tar.gz        
-    ) ELSE (                                                
-      twine upload -r pypi dist\\wexpect*.tar.gz   )        
+  - IF %APPVEYOR_REPO_BRANCH%==master (
+      twine upload -r pypi dist\\wexpect*.tar.gz
+    ) ELSE (
+      twine upload -r testpypi dist\\wexpect*.tar.gz
+    )        
    
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