1 files changed, 3 insertions, 3 deletions
diff --git a/src/backend/taler-merchant-httpd_private-post-account.c b/src/backend/taler-merchant-httpd_private-post-account.c
index 8e93203b..f9be253c 100644
--- a/src/backend/taler-merchant-httpd_private-post-account.c
+++ b/src/backend/taler-merchant-httpd_private-post-account.c
@@ -37,7 +37,7 @@ TMH_private_post_account (const struct TMH_RequestHandler *rh,
 {
   struct TMH_MerchantInstance *mi = hc->instance;
   const char *credit_facade_url = NULL;
-  json_t *credit_facade_credentials = NULL;
+  const json_t *credit_facade_credentials = NULL;
   const char *uri;
   struct GNUNET_JSON_Specification ispec[] = {
     GNUNET_JSON_spec_string ("payto_uri",
@@ -47,8 +47,8 @@ TMH_private_post_account (const struct TMH_RequestHandler *rh,
                                &credit_facade_url),
       NULL),
     GNUNET_JSON_spec_mark_optional (
-      GNUNET_JSON_spec_json ("credit_facade_credentials",
-                             &credit_facade_credentials),
+      GNUNET_JSON_spec_object_const ("credit_facade_credentials",
+                                     &credit_facade_credentials),
       NULL),
     GNUNET_JSON_spec_end ()
   };