diff --git a/lib/compress/zstd_lazy.c b/lib/compress/zstd_lazy.c
index 008b0a6b4..cbe2adae1 100644
--- a/lib/compress/zstd_lazy.c
+++ b/lib/compress/zstd_lazy.c
@@ -921,7 +921,7 @@ static ZSTD_VecMask ZSTD_Vec256_cmpMask8(ZSTD_Vec256 x, ZSTD_Vec256 y) {
   sndMask = ZSTD_Vec128_cmpMask8(x.snd, y.snd);
   return fstMask | (sndMask << 16);
 }
-#else//AVX2 
+#else/* AVX2 */
 typedef struct {
 	__m256i v;
 } ZSTD_Vec256;