diff --git a/libavcodec/escape130.c b/libavcodec/escape130.c
index 4482a0e070..a192831144 100644
--- a/libavcodec/escape130.c
+++ b/libavcodec/escape130.c
@@ -125,7 +125,7 @@ static av_cold int escape130_decode_init(AVCodecContext *avctx)
         return AVERROR_INVALIDDATA;
     }
 
-    s->old_y_avg = av_malloc(avctx->width * avctx->height / 4);
+    s->old_y_avg = av_mallocz(avctx->width * avctx->height / 4);
     s->buf1      = av_malloc(avctx->width * avctx->height * 3 / 2);
     s->buf2      = av_malloc(avctx->width * avctx->height * 3 / 2);
     if (!s->old_y_avg || !s->buf1 || !s->buf2) {