diff --git a/src/shared/tests.c b/src/shared/tests.c
index 54e80decd1..8884c8e90e 100644
--- a/src/shared/tests.c
+++ b/src/shared/tests.c
@@ -7,12 +7,6 @@
 #include <sys/mount.h>
 #include <sys/wait.h>
 
-/* When we include libgen.h because we need dirname() we immediately
- * undefine basename() since libgen.h defines it as a macro to the POSIX
- * version which is really broken. We prefer GNU basename(). */
-#include <libgen.h>
-#undef basename
-
 #include "sd-bus.h"
 
 #include "alloc-util.h"