1 files changed, 12 insertions, 9 deletions
diff --git a/spec/models/tree_spec.rb b/spec/models/tree_spec.rb
index c2d5dfdf9c4..7dde8459f9a 100644
--- a/spec/models/tree_spec.rb
+++ b/spec/models/tree_spec.rb
@@ -9,15 +9,18 @@ describe Tree do
   subject { described_class.new(repository, '54fcc214') }
 
   describe '#readme' do
-    class FakeBlob
-      attr_reader :name
-
-      def initialize(name)
-        @name = name
-      end
-
-      def readme?
-        name =~ /^readme/i
+    before do
+      stub_const('FakeBlob', Class.new)
+      FakeBlob.class_eval do
+        attr_reader :name
+
+        def initialize(name)
+          @name = name
+        end
+
+        def readme?
+          name =~ /^readme/i
+        end
       end
     end