diff --git a/Library/Homebrew/cmd/switch.rb b/Library/Homebrew/cmd/switch.rb
index c90d66fa88..8c058fdd1c 100644
--- a/Library/Homebrew/cmd/switch.rb
+++ b/Library/Homebrew/cmd/switch.rb
@@ -40,7 +40,7 @@ module Homebrew
     keg = Keg.new(rack+version)
 
     # Link new version, if not keg-only
-    if keg_only?(canonical_name)
+    if keg_only?(rack)
       keg.optlink
       puts "Opt link created for #{keg}"
     else