diff --git a/otobul/epaybg-bundle/1/manifest.json b/otobul/epaybg-bundle/1/manifest.json
index c3f481c1..4667e727 100644
--- a/otobul/epaybg-bundle/1/manifest.json
+++ b/otobul/epaybg-bundle/1/manifest.json
@@ -8,6 +8,6 @@
     "env": {
         "OTOBUL_EPAYBG_MIN": "YOUR_EPAYBG_MIN",
         "OTOBUL_EPAYBG_SECRET": "YOUR_EPAYBG_SECRET",
-        "OTOBUL_EPAYBG_IS_DEMO": true
+        "OTOBUL_EPAYBG_IS_DEMO": "true"
     }
 }