diff --git a/tests/auto/quick/dialogs/dialogs.pro b/tests/auto/quick/dialogs/dialogs.pro
index d28c623a1f5c95364b7fc26ca70751294d64d629..024b15a75876b0e4f6868b4688c548355a97af53 100644
--- a/tests/auto/quick/dialogs/dialogs.pro
+++ b/tests/auto/quick/dialogs/dialogs.pro
@@ -5,6 +5,8 @@ SOURCES += tst_dialogs.cpp
 include (../../shared/util.pri)
 
 macx:CONFIG -= app_bundle
+macx:CONFIG+=insignificant_test    # QTBUG-30513 - test is unstable
+linux-*:CONFIG+=insignificant_test    # QTBUG-30513 - test is unstable
 
 CONFIG += parallel_test
 QT += core-private gui-private qml-private quick-private v8-private testlib