diff --git a/.woodpecker.yaml b/.woodpecker.yaml
index b4a1a0c..60178e7 100644
--- a/.woodpecker.yaml
+++ b/.woodpecker.yaml
@@ -10,7 +10,7 @@ steps:
         from_secret: build_username
       dockerfile: Containerfile
       tags: latest
-      config_json:
+      configjson:
         from_secret: config_json
 when:
   - branch: 'master'
diff --git a/create_packs.sh b/create_packs.sh
index 28ec5cd..a67483e 100755
--- a/create_packs.sh
+++ b/create_packs.sh
@@ -1,6 +1,15 @@
 #!/bin/bash
-echo "$CONFIG_JSON" >> config.json
+echo "$PLUGIN_CONFIGJSON" >> config.json
+
+if [ ! -s config.json ]; then
+	echo "no config found"
+	exit 1
+fi
+if [[ -z $(grep '[^[:space:]]' "config.json") ]] ; then
+  echo "no config in file"
+  exit 1
+fi
+
 for d in packs/*/ ; do
     sticker-pack "$d" --add-to-index web/packs/
 done
-rm config.json