diff --git a/raft/log.go b/raft/log.go
index 342d8f4ce..c4162d667 100644
--- a/raft/log.go
+++ b/raft/log.go
@@ -359,7 +359,7 @@ func (l *raftLog) mustCheckOutOfBounds(lo, hi uint64) error {
 	}
 
 	length := l.lastIndex() + 1 - fi
-	if lo < fi || hi > fi+length {
+	if hi > fi+length {
 		l.logger.Panicf("slice[%d,%d) out of bound [%d,%d]", lo, hi, fi, l.lastIndex())
 	}
 	return nil