diff --git a/lib/foreman.rb b/lib/foreman.rb
index ca3f754f..1af97552 100644
--- a/lib/foreman.rb
+++ b/lib/foreman.rb
@@ -11,7 +11,7 @@ def self.ruby_18?
   end
 
   def self.windows?
-    defined?(RUBY_PLATFORM) and RUBY_PLATFORM =~ /(win|w)32$/
+    Gem.win_platform?
   end
 
 end