diff --git a/tests/tests_main.cpp b/tests/tests_main.cpp
index ddefcfce..d8c7e24e 100644
--- a/tests/tests_main.cpp
+++ b/tests/tests_main.cpp
@@ -1,4 +1,5 @@
 #include "tests_main.h"
+#undef QT_TESTCASE_BUILDDIR
 #include <QTest>
 
 QTEST_APPLESS_MAIN( QskRgbLiterals )