diff --git a/e2e-tests/aas-registry/test_api.tavern.yaml b/e2e-tests/aas-registry/test_api.tavern.yaml
index 6d37cfe0..1f240706 100644
--- a/e2e-tests/aas-registry/test_api.tavern.yaml
+++ b/e2e-tests/aas-registry/test_api.tavern.yaml
@@ -132,7 +132,7 @@ stages:
     response:
       status_code: 200
       json:
-        paging_metadata: {},
+        paging_metadata: "{}"
         result: ["{decoded_shell_id:s}"]
 
   - name: Delete shell descriptor by id