diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 9b3c0ac5f3..4256cfb776 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -156,6 +156,11 @@ class Formula
    ARGV.formulae.include? self
   end
 
+  def linked_keg
+    keg = Pathname.new(HOMEBREW_REPOSITORY/"Library/LinkedKegs"/@name)
+    if keg.exist? then Keg.new(keg.realpath) else nil end
+  end
+
   def installed_prefix
     head_prefix = HOMEBREW_CELLAR+@name+'HEAD'
     if @version == 'HEAD' || head_prefix.directory?
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index c2c04c8f3d..deee2b9563 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -67,6 +67,7 @@ class FormulaInstaller
     fi.show_header = false
     oh1 "Installing #{f} dependency: #{dep}"
     fi.install
+    dep.linked_keg.unlink if dep.linked_keg
     fi.caveats
     fi.finish
   end