diff --git a/rst==1-in-log.md b/rst==1-in-log.md
index 7ec01b1..811a9be 100644
--- a/rst==1-in-log.md
+++ b/rst==1-in-log.md
@@ -6,7 +6,7 @@ In this case,its not suggested to ignore it, you have to run udp2raw with `-a` o
 
 #### 2. You killed udp2raw client after a connection has already established to server. Then you may get rst==1 from server log.
 
-In this case, it's not perfect but it's as expected. 
+In this case, it's not perfect but it's as expected.  In most case it doesn't cause a problem.
 
 If you want to be perfect, it's suggested to use `-g` instead, add the rule manually and permanently.