1 files changed, 1 insertions, 0 deletions
diff --git a/udev_db.c b/udev_db.c
index c12e88c3c4..653d7d0855 100644
--- a/udev_db.c
+++ b/udev_db.c
@@ -26,6 +26,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stddef.h>
+#include <unistd.h>
 #include <fcntl.h>
 #include <string.h>
 #include <errno.h>