diff --git a/C#-and-.NET-docs-supplement.md b/C#-and-.NET-docs-supplement.md
index ee743c8..aabb03b 100644
--- a/C#-and-.NET-docs-supplement.md
+++ b/C#-and-.NET-docs-supplement.md
@@ -62,7 +62,7 @@ see [feature matrix](https://github.com/TASEmulators/BizHawk/wiki/Available-C%23
 
 ## Guarded `default` in `switch` statements
 
-You can only have 1 `default` branch, but `case _ when ...:` doesn't work. However, `case var _ when ...:` does.
+You can only have 1 `default:` branch (not to be confused with `case default:`), but you can't simply add a guard clause: `case _ when ...:` doesn't work. However, `case var _ when ...:` does.
 
 ## MSBuild `Condition` placement