diff --git a/drivers/media/platform/rockchip/isp/rkisp.c b/drivers/media/platform/rockchip/isp/rkisp.c
index 28fcad71b7ab..dedea22b876f 100644
--- a/drivers/media/platform/rockchip/isp/rkisp.c
+++ b/drivers/media/platform/rockchip/isp/rkisp.c
@@ -1482,7 +1482,7 @@ static void rkisp_config_cmsk_dual(struct rkisp_device *dev,
 			left.win[0].win_en &= ~BIT(i);
 			left.win[1].win_en &= ~BIT(i);
 			left.win[2].win_en &= ~BIT(i);
-			right.win[i].h_offs = right.win[i].h_offs - w;
+			right.win[i].h_offs = h_offs - w + RKMOUDLE_UNITE_EXTEND_PIXEL;
 		} else {
 			/* cmsk window at dual isp */
 			left.win[i].h_size = ALIGN(w - h_offs, 8);