diff --git a/lib/dm-do-adapter/adapter.rb b/lib/dm-do-adapter/adapter.rb
index 8c2ae4d..0a49389 100644
--- a/lib/dm-do-adapter/adapter.rb
+++ b/lib/dm-do-adapter/adapter.rb
@@ -677,10 +677,11 @@ def comparison_statement(comparison, qualify)
           # update conditions_statement to use it
 
           # break exclusive Range queries up into two comparisons ANDed together
-          if value.kind_of?(Range) && value.exclude_end?
+          if value.kind_of?(Range)
+            comparator = value.exclude_end? ? :lt : :lte
             operation = Query::Conditions::Operation.new(:and,
               Query::Conditions::Comparison.new(:gte, subject, value.first),
-              Query::Conditions::Comparison.new(:lt,  subject, value.last)
+              Query::Conditions::Comparison.new(comparator, subject, value.last)
             )
 
             statement, bind_values = conditions_statement(operation, qualify)
diff --git a/lib/dm-do-adapter/spec/shared_spec.rb b/lib/dm-do-adapter/spec/shared_spec.rb
index 06cfb26..4afb3ed 100644
--- a/lib/dm-do-adapter/spec/shared_spec.rb
+++ b/lib/dm-do-adapter/spec/shared_spec.rb
@@ -396,6 +396,28 @@ class ::Author
         end
       end
 
+      context 'with an range with inclusive end' do
+        before :all do
+          5.times do |index|
+            @article_model.create(:name => "Test #{index}", :parent => @article_model.last).should be_saved
+          end
+        end
+
+        it 'should not call #partition on the range' do
+          range = 1..5
+
+          query = DataMapper::Query.new(repository, @article_model, :parent_name => range)
+
+          # We have to get the dumped value, because the original value has been
+          # dupped multiple times
+          val = query.conditions.operands.first.send(:dumped_value)
+          val.stub(:partition)
+          val.should_not_receive(:partition)
+
+          @adapter.read(query)
+        end
+      end
+
       context 'with an inclusion comparison of nil values' do
         before :all do
           5.times do |index|