diff --git a/lua/zapret-obfs.lua b/lua/zapret-obfs.lua
index ca798d6..9ba2c4f 100644
--- a/lua/zapret-obfs.lua
+++ b/lua/zapret-obfs.lua
@@ -328,7 +328,6 @@ function synhide(ctx, desync)
 			error("synhide: invalid kind value")
 		end
 	else
-		-- some firewalls allow only AECN bit (1). if reserved bits are !=0 => administratively prohibited
 		kind = 172 -- accurate ecn
 	end