diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 00be1a2f56..4ddb30f0db 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -111,6 +111,7 @@ module Homebrew
     check_ppc
     check_writable_install_location
     check_xcode
+    check_macports
     check_cellar
   end
 
@@ -138,6 +139,5 @@ module Homebrew
     # another formula. In that case, don't generate an error, just move on.
   rescue CannotInstallFormulaError => e
     ofail e.message
-    check_macports
   end
 end