diff --git a/app/controllers/repositories_controller.rb b/app/controllers/repositories_controller.rb
index 6e968f9..364b834 100644
--- a/app/controllers/repositories_controller.rb
+++ b/app/controllers/repositories_controller.rb
@@ -92,7 +92,7 @@ class RepositoriesController < ApplicationController
 
   def committers
     @committers = @repository.committers
-    @users = @project.users
+    @users = @project.users.to_a
     additional_user_ids = @committers.collect(&:last).collect(&:to_i) - @users.collect(&:id)
     @users += User.where(:id => additional_user_ids).to_a unless additional_user_ids.empty?
     @users.compact!
diff --git a/test/functional/repositories_controller_test.rb b/test/functional/repositories_controller_test.rb
index 3e0fa59..056375c 100644
--- a/test/functional/repositories_controller_test.rb
+++ b/test/functional/repositories_controller_test.rb
@@ -279,6 +279,15 @@ class RepositoriesControllerTest < ActionController::TestCase
     assert_select 'input[value=foo] + select option[selected=selected]', 0 # no option selected
   end
 
+  def test_get_committers_without_changesets
+    Changeset.delete_all
+    @request.session[:user_id] = 2
+
+    get :committers, :id => 10
+    assert_response :success
+    assert_template 'committers'
+  end
+
   def test_post_committers
     @request.session[:user_id] = 2
     # add a commit with an unknown user