diff --git a/resources/gem.rb b/resources/gem.rb
index 11ffc79..356c9dd 100644
--- a/resources/gem.rb
+++ b/resources/gem.rb
@@ -27,7 +27,7 @@
 attribute :source,          :kind_of => String
 attribute :gem_binary,      :kind_of => String
 attribute :response_file,   :kind_of => String
-attribute :options,         :kind_of => Hash
+attribute :options,         :kind_of => String
 
 def initialize(*args)
   super