diff --git a/plugin.sh b/plugin.sh
index a06d920..1b5799b 100755
--- a/plugin.sh
+++ b/plugin.sh
@@ -12,7 +12,8 @@ REMOTE_DOCKER_HOST="ssh://$PLUGIN_USER@$PLUGIN_HOST:$PLUGIN_PORT"
 
 create_networks() {
   echo "--- start create_networks ---"
-  for NETWORK in $PLUGIN_NETWORKS; do
+  IFS=',' read -ra NETWORKS <<< "$PLUGIN_NETWORKS"
+  for NETWORK in "${NETWORKS[@]}"; do
     docker -H "$REMOTE_DOCKER_HOST" \
       network create --driver=overlay "$NETWORK" --scope swarm || true
   done