diff --git a/ChangeLog b/ChangeLog
index e57b5358..f2ed9d34 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2019-11-25 Alibaba Cloud.
+	* VERSION: 1.6.22
+	* BUGFIX: solve MOVED error when key is unicode encoding which is not
+	solved completed in v1.6.21.
+	* BUGFIX: update redis-go-cluster to solve the bug of \r\n. see #73 in
+	redis-full-check.
+	* BUGFIX: solve flushcount comparison: "flushcount=4097 > 4096" =>
+	"flushcount=4096 >= 4096".
+	* IMPROVE: add more log in redis-go-cluster.
 2019-11-12 Alibaba Cloud.
 	* VERSION: 1.6.21
 	* BUGFIX: update redis-go-cluster to solve the MOVED error when target
diff --git a/src/redis-shake/common/crc16.go b/src/redis-shake/common/crc16.go
index 5f4f9c4f..b2389052 100644
--- a/src/redis-shake/common/crc16.go
+++ b/src/redis-shake/common/crc16.go
@@ -81,8 +81,8 @@ var crc16tab = [256]uint16{
 
 func crc16(buf string) uint16 {
 	var crc uint16
-	for _, n := range buf {
-		crc = (crc << uint16(8)) ^ crc16tab[((crc>>uint16(8))^uint16(n))&0x00FF]
+	for i := 0; i < len(buf); i++ {
+		crc = (crc << uint16(8)) ^ crc16tab[((crc>>uint16(8))^uint16(buf[i]))&0x00FF]
 	}
 	return crc
-}
+}
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