diff --git a/mpp/hal/vpu/av1d/hal_av1d_vdpu.c b/mpp/hal/vpu/av1d/hal_av1d_vdpu.c
index 296fa6cb..b3edaf52 100644
--- a/mpp/hal/vpu/av1d/hal_av1d_vdpu.c
+++ b/mpp/hal/vpu/av1d/hal_av1d_vdpu.c
@@ -116,7 +116,7 @@ static RK_U32 rkv_ver_align(RK_U32 val)
 
 static RK_U32 rkv_hor_align(RK_U32 val)
 {
-    return MPP_ALIGN(val, 8);
+    return MPP_ALIGN(val, 16);
 }
 
 static RK_U32 rkv_len_align(RK_U32 val)