diff --git a/av1/common/tip.c b/av1/common/tip.c
index f8c6a69..2c11671 100644
--- a/av1/common/tip.c
+++ b/av1/common/tip.c
@@ -1012,6 +1012,7 @@
   const int comp_bh = bh >> ss_y;
 
   MB_MODE_INFO mbmi_buf;
+  av1_zero(mbmi_buf);
   MB_MODE_INFO *mbmi = &mbmi_buf;
 
   int_mv mv_refined[2 * 4];