diff --git a/tools/jenkins/run_jenkins.sh b/tools/jenkins/run_jenkins.sh
index 0f15835ea88..9ff588e8fa4 100755
--- a/tools/jenkins/run_jenkins.sh
+++ b/tools/jenkins/run_jenkins.sh
@@ -79,7 +79,6 @@ then
     -e "config=$config" \
     -e "language=$language" \
     -e "arch=$arch" \
-    -e "GRPC_ZOOKEEPER_SERVER_TEST=grpc-jenkins-master:2181" \
     -e CCACHE_DIR=/tmp/ccache \
     -i \
     -v "$git_root:/var/local/jenkins/grpc" \