diff --git a/lib/middleman.rb b/lib/middleman.rb
index a79e1bc1..da5f49d1 100755
--- a/lib/middleman.rb
+++ b/lib/middleman.rb
@@ -163,10 +163,10 @@ module Middleman
   
   def self.rubygems_latest_specs
     # If newer Rubygems
-    if Gem::Specification.respond_to? :latest_specs
-      Gem::Specification.latest_specs
+    if ::Gem::Specification.respond_to? :latest_specs
+      ::Gem::Specification.latest_specs
     else
-      Gem.source_index.latest_specs
+      ::Gem.source_index.latest_specs
     end
   end