diff --git a/CHANGELOG.md b/CHANGELOG.md
index fe848fcf2..ce535ac31 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,8 @@
     using SCP to upload files. [GH-924]
   - When console input is asked for (destroying a VM, bridged interfaces, etc.),
     keystrokes such as ctrl-D and ctrl-C are more gracefully handled. [GH-1017]
+  - Fixed bug where port check would use "localhost" on systems where
+    "localhost" is not available. [GH-1057]
 
 ## 1.0.3 (May 1, 2012)
 
diff --git a/lib/vagrant/action/vm/check_port_collisions.rb b/lib/vagrant/action/vm/check_port_collisions.rb
index 254b351ad..95f6d4f2f 100644
--- a/lib/vagrant/action/vm/check_port_collisions.rb
+++ b/lib/vagrant/action/vm/check_port_collisions.rb
@@ -33,7 +33,7 @@ module Vagrant
             hostport = options[:hostport].to_i
             hostport = current[options[:name]] if current.has_key?(options[:name])
 
-            if existing.include?(hostport) || is_port_open?("localhost", hostport)
+            if existing.include?(hostport) || is_port_open?("127.0.0.1", hostport)
               # We have a collision! Handle it
               send("handle_#{handler}".to_sym, options, existing)
             end