diff --git a/config.tests/.qmake.conf b/config.tests/.qmake.conf
index 71e6817656..e8f6f09e9d 100644
--- a/config.tests/.qmake.conf
+++ b/config.tests/.qmake.conf
@@ -1,6 +1 @@
-mingw {
-    TMPPATH = $$(INCLUDE)
-    QMAKE_INCDIR_POST += $$split(TMPPATH, $$QMAKE_DIRLIST_SEP)
-    TMPPATH = $$(LIB)
-    QMAKE_LIBDIR_POST += $$split(TMPPATH, $$QMAKE_DIRLIST_SEP)
-}
+# This file exists only to detach the tests from the surroundings.