diff --git a/tests/tests.pro b/tests/tests.pro
index 85e4f3a5..4966afe7 100644
--- a/tests/tests.pro
+++ b/tests/tests.pro
@@ -1,2 +1,2 @@
 TEMPLATE = subdirs
-SUBDIRS +=  auto
+qtconfig(testlib): SUBDIRS += auto