diff --git a/web/metrics/main_test.go b/web/metrics/main_test.go
index 56a490e..8b656a2 100644
--- a/web/metrics/main_test.go
+++ b/web/metrics/main_test.go
@@ -16,4 +16,9 @@ func TestMetricsLoaded(t *testing.T) {
 
 	// GET
 	s.Request(http.MethodGet, "/metrics", nil, http.StatusOK, nil)
+
+	UP = func() bool { return false }
+
+	// GET
+	s.Request(http.MethodGet, "/metrics", nil, http.StatusOK, nil)
 }