diff --git a/Jenkinsfile-pypi b/Jenkinsfile-pypi
index 72d16f7da..8bc51a963 100644
--- a/Jenkinsfile-pypi
+++ b/Jenkinsfile-pypi
@@ -33,7 +33,7 @@ node("master") {
   stage("Publish and test") {
         
     //  publish for release tags
-    if (BRANCH_NAME.startsWith('v')) {
+    if (BRANCH_NAME.startsWith('pypi_v')) {
       sh("twine upload --skip-existing wheelhouse/klayout-*manylinux2014*.whl wheelhouse/*.zip")
     }