diff --git a/Patches.md b/Patches.md
index 2e4688d..e12d789 100644
--- a/Patches.md
+++ b/Patches.md
@@ -4,7 +4,7 @@ Then run the following darcs commands to generate a darcs patch file named `WHAT
 
 ```
   darcs record
-  darcs send -o WHAT.txt
+  darcs send -o WHAT.darcspatch.txt
 ```
 
 And attach it to the ticket.