1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/taler-merchant-httpd_post-orders-ID-claim.c b/src/backend/taler-merchant-httpd_post-orders-ID-claim.c
index b1c15222..e7d0c845 100644
--- a/src/backend/taler-merchant-httpd_post-orders-ID-claim.c
+++ b/src/backend/taler-merchant-httpd_post-orders-ID-claim.c
@@ -69,8 +69,8 @@ claim_order (const char *instance_id,
     uint64_t order_serial;
 
     qs = TMH_db->lookup_contract_terms (TMH_db->cls,
-                                        order_id,
                                         instance_id,
+                                        order_id,
                                         contract_terms,
                                         &order_serial);
   }