diff --git a/tests/Makefile.am b/tests/Makefile.am
index adbe2f3d5e0c14eddc4b3229ea6281eb8c62a45e..237336d648bc23267adba75be1aac947e91f5a1e 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -63,9 +63,6 @@ DRIVERLIB_LDFLAGS = \
 	-rpath /evil/libtool/hack/to/force/shared/lib/creation \
 	$(MINGW_EXTRA_LDFLAGS)
 
-AM_CPPFLAGS += \
-	-DTEST_DRIVER_DIR=\"$(top_builddir)/src/.libs\"
-
 PROBES_O =
 if WITH_DTRACE_PROBES
 PROBES_O += ../src/libvirt_probes.lo