diff --git a/backend/config_prod.json b/backend/config_prod.json
index e5368c4..7b4d543 100644
--- a/backend/config_prod.json
+++ b/backend/config_prod.json
@@ -1,7 +1,7 @@
 {
     "ssl_cert_path": "/app/backend/ssl/mx-aare-test.psi.ch.pem",
     "ssl_key_path": "/app/backend/ssl/mx-aare-test.psi.ch.key",
-    "OPENAPI_URL": "https://mx-aare-test.psi.ch:1492/openapi.json",
+    "OPENAPI_URL": "https://backend:1492/openapi.json",
     "SCHEMA_PATH": "/app/src/openapi.json",
     "OUTPUT_DIRECTORY": "/app/openapi",
     "PORT": 1492,