diff --git a/roles/davina_backend/templates/conf.json.j2 b/roles/davina_backend/templates/conf.json.j2
index c410b88..69707c0 100644
--- a/roles/davina_backend/templates/conf.json.j2
+++ b/roles/davina_backend/templates/conf.json.j2
@@ -1,6 +1,6 @@
 {
-	"auth": {{ var_davina_backend_auth | json }},
-	"source": {{ var_davina_backend_source | json }},
+	"auth": {{ var_davina_backend_auth | to_json }},
+	"source": {{ var_davina_backend_source | to_json }},
 	"settings": {
 		"timezone": "UTC"
 	}