Add note regarding fallthrough in type switch
diff --git a/Switch.md b/Switch.md
index 39445a8..5bbebc5 100644
--- a/Switch.md
+++ b/Switch.md
@@ -173,6 +173,8 @@
 	error()
 }
 ```
+Note: `fallthrough` does not work in type switch.
+
 ## Multiple cases
 
 If you want to use multiple values in the same case, use a comma-separated list.