diff --git a/udevtest.c b/udevtest.c
index 95b85dd8bed..67ae9cc98f4 100644
--- a/udevtest.c
+++ b/udevtest.c
@@ -29,6 +29,7 @@
 
 #include "libsysfs/sysfs/libsysfs.h"
 #include "udev.h"
+#include "udev_lib.h"
 #include "udev_version.h"
 #include "logging.h"
 #include "namedev.h"