diff --git a/Library/Homebrew/cmd/edit.rb b/Library/Homebrew/cmd/edit.rb
index abaefbea89..06be636dc6 100644
--- a/Library/Homebrew/cmd/edit.rb
+++ b/Library/Homebrew/cmd/edit.rb
@@ -17,7 +17,12 @@ module Homebrew extend self
     else
       # Don't use ARGV.formulae as that will throw if the file doesn't parse
       paths = ARGV.named.map do |name|
-        HOMEBREW_REPOSITORY+"Library/Formula/#{Formula.canonical_name name}.rb"
+        name = Formula.canonical_name name
+        if name.include? '/'
+          Pathname.new(name)
+        else
+          HOMEBREW_REPOSITORY+"Library/Formula/#{name}.rb"
+        end
       end
       unless ARGV.force?
         paths.each do |path|