diff --git a/mysql/util.go b/mysql/util.go
index 6f19062..b11dfb1 100644
--- a/mysql/util.go
+++ b/mysql/util.go
@@ -52,6 +52,12 @@ func RandomBuf(size int) ([]byte, error) {
return nil, err
}
+ // avoid to generate '\0'
+ for i, b := range buf {
+ if uint8(b) == 0 {
+ buf[i] = '0'
+ }
+ }
return buf, nil
}