diff --git a/libavcodec/libxavs.c b/libavcodec/libxavs.c
index ffe3411c96..92dceceac1 100644
--- a/libavcodec/libxavs.c
+++ b/libavcodec/libxavs.c
@@ -353,7 +353,7 @@ static av_cold int XAVS_init(AVCodecContext *avctx)
     if (!x4->enc)
         return -1;
 
-    if (!(x4->pts_buffer = av_mallocz((avctx->max_b_frames+1) * sizeof(*x4->pts_buffer))))
+    if (!(x4->pts_buffer = av_mallocz_array((avctx->max_b_frames+1), sizeof(*x4->pts_buffer))))
         return AVERROR(ENOMEM);
 
     avctx->coded_frame = av_frame_alloc();