diff --git a/vp9/encoder/vp9_encodeframe.c b/vp9/encoder/vp9_encodeframe.c
index 3d5b444da73a93fed04bbe3ea2154c18d1c9c48d..1609d582db013609aa913e5293b4eee3b036b9bf 100644
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -2887,6 +2887,7 @@ static void encode_frame_internal(VP9_COMP *cpi) {
       pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][0];
       p[i].eobs = ctx->eobs_pbuf[i][0];
     }
+    vp9_zero(x->zcoeff_blk);
   }
 
   {
@@ -3177,6 +3178,7 @@ static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t, int output_enabled,
   x->use_lp32x32fdct = cpi->sf.use_lp32x32fdct;
   x->skip_encode = (!output_enabled && cpi->sf.skip_encode_frame &&
                     x->q_index < QIDX_SKIP_THRESH);
+
   if (x->skip_encode)
     return;