diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index e0037665aa92..9ca55ad589e5 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1374,7 +1374,7 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 	struct inode *inode = NULL;
 	unsigned long ref_ptr;
 	unsigned long ref_end;
-	struct fscrypt_str name;
+	struct fscrypt_str name = { 0 };
 	int ret;
 	int log_ref_ver = 0;
 	u64 parent_objectid;