diff --git a/app/models/query.rb b/app/models/query.rb
index 59131afcd..638cc8226 100644
--- a/app/models/query.rb
+++ b/app/models/query.rb
@@ -196,10 +196,10 @@ class Query < ActiveRecord::Base
     @available_filters["assigned_to_id"] = { :type => :list_optional, :order => 4, :values => user_values } unless user_values.empty?
     @available_filters["author_id"] = { :type => :list, :order => 5, :values => user_values } unless user_values.empty?
 
-    group_values = Group.all.collect {|g| [g.name, g.id] }
+    group_values = Group.all.collect {|g| [g.name, g.id.to_s] }
     @available_filters["member_of_group"] = { :type => :list_optional, :order => 6, :values => group_values } unless group_values.empty?
 
-    role_values = Role.givable.collect {|r| [r.name, r.id] }
+    role_values = Role.givable.collect {|r| [r.name, r.id.to_s] }
     @available_filters["assigned_to_role"] = { :type => :list_optional, :order => 7, :values => role_values } unless role_values.empty?
     
     if User.current.logged?
diff --git a/test/unit/query_test.rb b/test/unit/query_test.rb
index db6173bae..85bf9b173 100644
--- a/test/unit/query_test.rb
+++ b/test/unit/query_test.rb
@@ -397,8 +397,8 @@ class QueryTest < ActiveSupport::TestCase
         group2 = Group.generate!.reload
 
         expected_group_list = [
-                               [group1.name, group1.id],
-                               [group2.name, group2.id]
+                               [group1.name, group1.id.to_s],
+                               [group2.name, group2.id.to_s]
                               ]
         assert_equal expected_group_list.sort, @query.available_filters["member_of_group"][:values].sort
       end
@@ -415,14 +415,14 @@ class QueryTest < ActiveSupport::TestCase
       end
       
       should "have a list of the Roles as values" do
-        assert @query.available_filters["assigned_to_role"][:values].include?(['Manager',1])
-        assert @query.available_filters["assigned_to_role"][:values].include?(['Developer',2])
-        assert @query.available_filters["assigned_to_role"][:values].include?(['Reporter',3])
+        assert @query.available_filters["assigned_to_role"][:values].include?(['Manager','1'])
+        assert @query.available_filters["assigned_to_role"][:values].include?(['Developer','2'])
+        assert @query.available_filters["assigned_to_role"][:values].include?(['Reporter','3'])
       end
 
       should "not include the built in Roles as values" do
-        assert ! @query.available_filters["assigned_to_role"][:values].include?(['Non member',4])
-        assert ! @query.available_filters["assigned_to_role"][:values].include?(['Anonymous',5])
+        assert ! @query.available_filters["assigned_to_role"][:values].include?(['Non member','4'])
+        assert ! @query.available_filters["assigned_to_role"][:values].include?(['Anonymous','5'])
       end
 
     end