diff --git a/src/slz.c b/src/slz.c
index a9104ea9e..76e89e20e 100644
--- a/src/slz.c
+++ b/src/slz.c
@@ -969,7 +969,7 @@ uint32_t slz_crc32_by4(uint32_t crc, const unsigned char *buf, int len)
 	}
 
 	while (buf < end)
-		crc = crc32_fast[0][(crc ^ *buf++) & 0xff] ^ (crc >> 8);
+		crc = crc32_char(crc, *buf++);
 	return crc;
 }