diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c
index cd342b9d88..644beb34da 100644
--- a/libavcodec/smacker.c
+++ b/libavcodec/smacker.c
@@ -271,7 +271,7 @@ static int smacker_decode_header_tree(SmackVContext *smk, GetBitContext *gb, int
     huff.length = ((size + 3) >> 2) + 4;
     huff.maxlength = 0;
     huff.current = 0;
-    huff.values = av_mallocz(huff.length * sizeof(int));
+    huff.values = av_mallocz_array(huff.length, sizeof(int));
     if (!huff.values) {
         err = AVERROR(ENOMEM);
         goto error;