diff --git a/src/utils/teneo-response.js b/src/utils/teneo-response.js
index 8bfff4c..1e4a346 100644
--- a/src/utils/teneo-response.js
+++ b/src/utils/teneo-response.js
@@ -58,6 +58,7 @@ export default class TeneoResponse {
     for (let [key] of Object.entries(this.json.output.parameters)) {
       paramNames.push(key);
     }
+    return paramNames;
   }
 
   hasParametersStartingWith(prefix) {