diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index d1a50e8873..d8dfc34ba7 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -93,7 +93,6 @@ module Homebrew extend self
     check_ppc
     check_writable_install_location
     check_xcode
-    check_macports
     check_cellar
   end
 
@@ -121,5 +120,6 @@ module Homebrew extend self
     opoo e.message
   rescue CannotInstallFormulaError => e
     ofail e.message
+    check_macports
   end
 end