diff --git a/spec/slugtastic/model_additions_spec.rb b/spec/slugtastic/model_additions_spec.rb
index 968130a..92e94a7 100644
--- a/spec/slugtastic/model_additions_spec.rb
+++ b/spec/slugtastic/model_additions_spec.rb
@@ -1,27 +1,10 @@
 # encoding: utf-8
 
 require "spec_helper"
-require "active_support/core_ext/hash/reverse_merge"
-require "active_model"
+require "support/fake_model"
 
-class BaseModel
-  include ActiveModel::Validations::Callbacks
+class BaseModel < FakeModel
   extend Slugtastic::ModelAdditions
-
-  def initialize(attrs = {})
-    attrs.each do |key, value|
-      instance_variable_set(:"@#{key}", value)
-    end
-  end
-
-  def self.create!(attrs)
-    new(attrs).save
-  end
-
-  def save
-    _run_validation_callbacks
-    self
-  end
 end
 
 class Model < BaseModel
diff --git a/spec/support/fake_model.rb b/spec/support/fake_model.rb
new file mode 100644
index 0000000..6e9091b
--- /dev/null
+++ b/spec/support/fake_model.rb
@@ -0,0 +1,21 @@
+require "active_support/core_ext/hash/reverse_merge"
+require "active_model"
+
+class FakeModel
+  include ActiveModel::Validations::Callbacks
+
+  def initialize(attrs = {})
+    attrs.each do |key, value|
+      instance_variable_set(:"@#{key}", value)
+    end
+  end
+
+  def self.create!(attrs)
+    new(attrs).save
+  end
+
+  def save
+    _run_validation_callbacks
+    self
+  end
+end