diff --git a/build/ci/jenkins/PR.groovy b/build/ci/jenkins/PR.groovy
index 8465e323fc..3033daf16c 100644
--- a/build/ci/jenkins/PR.groovy
+++ b/build/ci/jenkins/PR.groovy
@@ -128,6 +128,7 @@ pipeline {
                                                 --set etcd.metrics.enabled=true \
                                                 --set etcd.metrics.podMonitor.enabled=true \
                                                 --set etcd.nodeSelector.disk=fast \
+                                                --set indexCoordinator.gc.interval=1 \
                                                 --version ${chart_version} \
                                                 -f values/pr.yaml" 
                                                 """