diff --git a/cluster/gce/config-default.sh b/cluster/gce/config-default.sh
index 17b0b1fbb11..6ee7574b7f7 100755
--- a/cluster/gce/config-default.sh
+++ b/cluster/gce/config-default.sh
@@ -31,7 +31,7 @@ MASTER_TAG="${INSTANCE_PREFIX}-master"
 MINION_TAG="${INSTANCE_PREFIX}-minion"
 MINION_NAMES=($(eval echo ${INSTANCE_PREFIX}-minion-{1..${NUM_MINIONS}}))
 MINION_IP_RANGES=($(eval echo "10.244.{1..${NUM_MINIONS}}.0/24"))
-MINION_SCOPES=(storage-ro compute-rw)
+MINION_SCOPES=("storage-ro" "compute-rw")
 # Increase the sleep interval value if concerned about API rate limits. 3, in seconds, is the default.
 POLL_SLEEP_INTERVAL=3
 PORTAL_NET="10.0.0.0/16"