diff --git a/tools/libevdev-tweak-device.c b/tools/libevdev-tweak-device.c
index f2031c2..1855f0e 100644
--- a/tools/libevdev-tweak-device.c
+++ b/tools/libevdev-tweak-device.c
@@ -27,6 +27,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -218,7 +219,7 @@ int
 main(int argc, char **argv)
 {
 	struct libevdev *dev = NULL;
-	int fd;
+	int fd = -1;
 	int rc = 1;
 
 	rc = parse_options(argc, argv);
@@ -249,6 +250,7 @@ main(int argc, char **argv)
 
 out:
 	libevdev_free(dev);
+	close(fd);
 
 	return rc;
 }