diff --git a/test/integration/custom_score_queries_test.rb b/test/integration/custom_score_queries_test.rb
index b1368690..ce382afa 100644
--- a/test/integration/custom_score_queries_test.rb
+++ b/test/integration/custom_score_queries_test.rb
@@ -62,6 +62,25 @@ class CustomScoreQueriesIntegrationTest < Test::Unit::TestCase
         assert_equal 3.0, s.results[1]._score
       end
 
+      should "allow to pass parameters to the script" do
+        s = Tire.search('articles-test') do
+          query do
+            # Replace documents score with parameterized computation
+            #
+            custom_score :script => "doc['words'].doubleValue / max(a, b)",
+                         :params => { :a => 1, :b => 2 } do
+              string "title:T*"
+            end
+          end
+        end
+
+        assert_equal 2, s.results.size
+        assert_equal ['Three', 'Two'], s.results.map(&:title)
+
+        assert_equal 187.5, s.results[0]._score
+        assert_equal 125.0, s.results[1]._score
+      end
+
     end
 
   end
diff --git a/test/unit/search_query_test.rb b/test/unit/search_query_test.rb
index fbbf613b..83d196e3 100644
--- a/test/unit/search_query_test.rb
+++ b/test/unit/search_query_test.rb
@@ -58,7 +58,7 @@ class QueryTest < Test::Unit::TestCase
                       Query.new.string('foo', :fields => ['title.*'], :use_dis_max => true) )
       end
 
-      should "allow set options when searching with custom score" do
+      should "allow to set script for custom score queries" do
         query = Query.new.custom_score(:script => "_score * doc['price'].value") do
           string 'foo'
         end
@@ -66,6 +66,16 @@ class QueryTest < Test::Unit::TestCase
         assert_equal "_score * doc['price'].value", query[:custom_score][:script]
       end
 
+      should "allow to pass parameters for custom score queries" do
+        query = Query.new.custom_score(:script => "_score * doc['price'].value / max(a, b)",
+                                       :params => { :a => 1, :b => 2 }) do
+          string 'foo'
+        end
+
+        assert_equal 1, query[:custom_score][:params][:a]
+        assert_equal 2, query[:custom_score][:params][:b]
+      end
+
       should "search for all documents" do
         assert_equal( { :match_all => { } }, Query.new.all )
       end