diff --git a/src/test/test-udev.c b/src/test/test-udev.c
index 7cb93edc1d..aee87f753d 100644
--- a/src/test/test-udev.c
+++ b/src/test/test-udev.c
@@ -32,6 +32,7 @@
 #include <sys/mount.h>
 #include <sys/signalfd.h>
 
+#include "missing.h"
 #include "udev.h"
 
 void udev_main_log(struct udev *udev, int priority,