diff --git a/src/udev/udev-builtin-btrfs.c b/src/udev/udev-builtin-btrfs.c
index 2e2112fd92..74b220928e 100644
--- a/src/udev/udev-builtin-btrfs.c
+++ b/src/udev/udev-builtin-btrfs.c
@@ -24,6 +24,7 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <sys/ioctl.h>
+
 #ifdef HAVE_LINUX_BTRFS_H
 #include <linux/btrfs.h>
 #endif
@@ -32,7 +33,7 @@
 #include "udev.h"
 
 static int builtin_btrfs(struct udev_device *dev, int argc, char *argv[], bool test) {
-        struct  btrfs_ioctl_vol_args args;
+        struct btrfs_ioctl_vol_args args = {};
         _cleanup_close_ int fd = -1;
         int err;