diff --git a/cluster/gce/util.sh b/cluster/gce/util.sh
index 3356fbb07f8..37f1d605252 100755
--- a/cluster/gce/util.sh
+++ b/cluster/gce/util.sh
@@ -1242,6 +1242,7 @@ CUSTOM_CALICO_NODE_DAEMONSET_YAML: |
 $(echo "${CUSTOM_CALICO_NODE_DAEMONSET_YAML:-}" | sed -e "s/'/''/g")
 CUSTOM_TYPHA_DEPLOYMENT_YAML: |
 $(echo "${CUSTOM_TYPHA_DEPLOYMENT_YAML:-}" | sed -e "s/'/''/g")
+CONCURRENT_SERVICE_SYNCS: $(yaml-quote ${CONCURRENT_SERVICE_SYNCS:-})
 EOF
   if [[ "${master}" == "true" && "${MASTER_OS_DISTRIBUTION}" == "gci" ]] || \
      [[ "${master}" == "false" && "${NODE_OS_DISTRIBUTION}" == "gci" ]]  || \