diff --git a/libavcodec/xl.c b/libavcodec/xl.c
index f0e83fcf29..ff62a0f62b 100644
--- a/libavcodec/xl.c
+++ b/libavcodec/xl.c
@@ -49,11 +49,10 @@ static int decode_frame(AVCodecContext *avctx,
     uint32_t val;
     int y0, y1, y2, y3 = 0, c0 = 0, c1 = 0;
 
-    if (avctx->width & 3) {
+    if (avctx->width % 4) {
         av_log(avctx, AV_LOG_ERROR, "width is not a multiple of 4\n");
         return AVERROR_INVALIDDATA;
     }
-
     if (buf_size < avctx->width * avctx->height) {
         av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");
         return AVERROR_INVALIDDATA;