diff --git a/utils.c b/utils.c
index 412de80c..7b4cd74f 100644
--- a/utils.c
+++ b/utils.c
@@ -482,7 +482,7 @@ int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
 	u64 num_devs;
 	int ret;
 
-	device = kmalloc(sizeof(*device), GFP_NOFS);
+	device = kzalloc(sizeof(*device), GFP_NOFS);
 	if (!device)
 		return -ENOMEM;
 	buf = kmalloc(sectorsize, GFP_NOFS);