diff --git a/ci/testnet-deploy.sh b/ci/testnet-deploy.sh
index fff16ea3f..4399f7fcf 100755
--- a/ci/testnet-deploy.sh
+++ b/ci/testnet-deploy.sh
@@ -116,7 +116,7 @@ fi
 set -x
 
 echo --- gce.sh delete
-time net/gce.sh delete -p "$netName"
+time net/gce.sh delete -z "$zone" -p "$netName"
 if $delete; then
   exit 0
 fi