diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 839ca9a..a19ee48 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -93,7 +93,7 @@ xfs_growfs_data_private(
 	xfs_agnumber_t		nagimax = 0;
 	xfs_rfsblock_t		nb, nb_div, nb_mod;
 	int64_t			delta;
-	bool			lastag_extended;
+	bool			lastag_extended = false;
 	xfs_agnumber_t		oagcount;
 	struct xfs_trans	*tp;
 	struct aghdr_init_data	id = {};