diff --git a/client.go b/client.go
index f94d0dc..d1fb1cd 100644
--- a/client.go
+++ b/client.go
@@ -120,7 +120,7 @@ func (c *Client) DelLock(key string) error {
 }
 
 func IsValidAsKeyPath(s string) bool {
-	return strings.IndexByte(s, '/') == -1
+	return strings.IndexAny(s, "/\\") == -1
 }
 
 // etcdTimeoutContext return better error info
diff --git a/errors.go b/errors.go
index 4d7285a..5815751 100644
--- a/errors.go
+++ b/errors.go
@@ -8,8 +8,8 @@ var (
 
 	ErrEmptyJobName        = errors.New("Name of job is empty.")
 	ErrEmptyJobCommand     = errors.New("Command of job is empty.")
-	ErrIllegalJobId        = errors.New("Invalid id that includes illegal characters such as '/'.")
-	ErrIllegalJobGroupName = errors.New("Invalid job group name that includes illegal characters such as '/'.")
+	ErrIllegalJobId        = errors.New("Invalid id that includes illegal characters such as '/' '\\'.")
+	ErrIllegalJobGroupName = errors.New("Invalid job group name that includes illegal characters such as '/' '\\'.")
 
 	ErrEmptyNodeGroupName = errors.New("Name of node group is empty.")
 	ErrIllegalNodeGroupId = errors.New("Invalid node group id that includes illegal characters such as '/'.")