diff --git a/FAQ.md b/FAQ.md
index 0398ba0..c68ac9a 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -898,7 +898,7 @@ Or use preset password in address book and share in your team.
 
 https://www.reddit.com/r/rustdesk/search/?q=key+mismatch&cId=9300c8dc-ab3b-47dd-b6da-354611a649d7&iId=7816df66-cb99-47aa-bd6a-46c427c5b3a2
 
-Please make sure there is only one `rustdesk server` and one `hbbs` process running especially you change from OSS to Pro.
+Please make sure there is only one `rustdesk server` (or one `hbbs` process) running especially you change from OSS to Pro.
 
 Case 1: