diff --git a/tests/unittests/ui/stub_ui.c b/tests/unittests/ui/stub_ui.c
index 14afbc40..2d5da2ef 100644
--- a/tests/unittests/ui/stub_ui.c
+++ b/tests/unittests/ui/stub_ui.c
@@ -1469,3 +1469,9 @@ cons_has_alerts(void)
 {
     return FALSE;
 }
+
+gboolean
+ui_is_suspended(void)
+{
+    return FALSE;
+}