diff --git a/testsuite/gtk/defaultvalue.c b/testsuite/gtk/defaultvalue.c
index 84a3d80429..11cf4fb3bb 100644
--- a/testsuite/gtk/defaultvalue.c
+++ b/testsuite/gtk/defaultvalue.c
@@ -137,6 +137,10 @@ test_type (gconstpointer data)
 	  (strcmp (pspec->name, "use-header-bar") == 0))
 	continue;
 
+      if (g_type_is_a (type, GTK_TYPE_ASSISTANT) &&
+	  (strcmp (pspec->name, "use-header-bar") == 0))
+	continue;
+
       if (g_type_is_a (type, GTK_TYPE_POPOVER) &&
 	  (strcmp (pspec->name, "pointing-to") == 0))
 	continue;