diff --git a/test_utils/test_utils.go b/test_utils/test_utils.go
index 3fe0a02396a6c58485660d671f5428ead13c6dbf..728577b83c8853fed72bc822489582ba789df886 100644
--- a/test_utils/test_utils.go
+++ b/test_utils/test_utils.go
@@ -40,7 +40,7 @@ func StartTestHandler(context context.Context, apiHandler lambda.Handler, sqsHan
 		go func() {
 			// Serve ngrok tunnel
 			tun, _ := ngrok.Listen(context, config.HTTPEndpoint(), ngrok.WithAuthtoken(os.Getenv("NGROK_AUTHTOKEN")))
-			os.Setenv("OVERWRITTEN_CORE_API_URL", tun.URL())
+			os.Setenv("NGROK_URL", tun.URL())
 			fmt.Println(fmt.Sprintf("Ngrok tunnel created: %s", tun.URL()))
 			_ = http.Serve(tun, nil)
 		}()