diff --git a/lib/puppet/provider/yaml_setting/mapped.rb b/lib/puppet/provider/yaml_setting/mapped.rb
index 39b5372..237a24f 100644
--- a/lib/puppet/provider/yaml_setting/mapped.rb
+++ b/lib/puppet/provider/yaml_setting/mapped.rb
@@ -103,7 +103,7 @@ def self.parse_file(filename, contents)
       resource[:target] = filename
       resource[:name]   = "#{resource[:target].to_s}:#{resource[:key].to_s}"
       resource[:type]   = case resource[:value]
-      when Fixnum
+      when Integer
         'integer'
       when Symbol
         'symbol'