diff --git a/dm-is-predefined.gemspec b/dm-is-predefined.gemspec
index fb829ca..5138c91 100644
--- a/dm-is-predefined.gemspec
+++ b/dm-is-predefined.gemspec
@@ -1,76 +1,10 @@
-# Generated by jeweler
-# DO NOT EDIT THIS FILE DIRECTLY
-# Instead, edit Jeweler::Tasks in Rakefile, and run the gemspec command
 # -*- encoding: utf-8 -*-
 
-Gem::Specification.new do |s|
-  s.name = %q{dm-is-predefined}
-  s.version = "0.3.0"
-
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
-  s.authors = ["Postmodern"]
-  s.date = %q{2010-09-04}
-  s.description = %q{A DataMapper plugin for adding predefined resources to Models.}
-  s.email = %q{postmodern.mod3@gmail.com}
-  s.extra_rdoc_files = [
-    "ChangeLog.md",
-    "LICENSE.txt",
-    "README.md"
-  ]
-  s.files = [
-    ".gitignore",
-    ".specopts",
-    ".yardopts",
-    "ChangeLog.md",
-    "Gemfile",
-    "Gemfile.lock",
-    "LICENSE.txt",
-    "README.md",
-    "Rakefile",
-    "VERSION",
-    "dm-is-predefined.gemspec",
-    "lib/dm-is-predefined.rb",
-    "lib/dm-is-predefined/is/exceptions/unknown_resource.rb",
-    "lib/dm-is-predefined/is/predefined.rb",
-    "spec/integration/models/test_model.rb",
-    "spec/integration/predefined_spec.rb",
-    "spec/spec_helper.rb"
-  ]
-  s.has_rdoc = %q{yard}
-  s.homepage = %q{http://github.com/postmodern/dm-is-predefined}
-  s.licenses = ["MIT"]
-  s.require_paths = ["lib"]
-  s.rubygems_version = %q{1.3.7}
-  s.summary = %q{A DataMapper plugin for adding predefined resources to Models.}
-  s.test_files = [
-    "spec/integration/models/test_model.rb",
-    "spec/integration/predefined_spec.rb",
-    "spec/spec_helper.rb"
-  ]
-
-  if s.respond_to? :specification_version then
-    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
-    s.specification_version = 3
-
-    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<activesupport>, ["~> 3.0.0"])
-      s.add_runtime_dependency(%q<dm-core>, ["~> 1.0.0"])
-      s.add_development_dependency(%q<rake>, ["~> 0.8.7"])
-      s.add_development_dependency(%q<jeweler>, ["~> 1.5.0.pre"])
-      s.add_development_dependency(%q<rspec>, ["~> 1.3.0"])
-    else
-      s.add_dependency(%q<activesupport>, ["~> 3.0.0"])
-      s.add_dependency(%q<dm-core>, ["~> 1.0.0"])
-      s.add_dependency(%q<rake>, ["~> 0.8.7"])
-      s.add_dependency(%q<jeweler>, ["~> 1.5.0.pre"])
-      s.add_dependency(%q<rspec>, ["~> 1.3.0"])
-    end
-  else
-    s.add_dependency(%q<activesupport>, ["~> 3.0.0"])
-    s.add_dependency(%q<dm-core>, ["~> 1.0.0"])
-    s.add_dependency(%q<rake>, ["~> 0.8.7"])
-    s.add_dependency(%q<jeweler>, ["~> 1.5.0.pre"])
-    s.add_dependency(%q<rspec>, ["~> 1.3.0"])
+begin
+  Ore::Specification.new do |gemspec|
+    # custom logic here
   end
+rescue NameError
+  STDERR.puts "The 'dm-is-predefined.gemspec' file requires Ore."
+  STDERR.puts "Run `gem install ore` to install Ore."
 end
-