diff --git a/app/models/deploy_service.rb b/app/models/deploy_service.rb
index 95cc61d929..72023aab30 100644
--- a/app/models/deploy_service.rb
+++ b/app/models/deploy_service.rb
@@ -78,6 +78,7 @@ def latest_approved_deploy(reference, project)
 
   def copy_approval_from_last_deploy(deploy)
     return false unless last_deploy = latest_approved_deploy(deploy.reference, deploy.stage.project)
+    return false if deploy.changeset_to(last_deploy).commits.any?
     return false if stage_script_changed_after?(last_deploy)
 
     deploy.buddy = (last_deploy.buddy == @user ? last_deploy.job.user : last_deploy.buddy)
diff --git a/test/models/deploy_service_test.rb b/test/models/deploy_service_test.rb
index fc904dc4e4..c5feba1afd 100644
--- a/test/models/deploy_service_test.rb
+++ b/test/models/deploy_service_test.rb
@@ -33,8 +33,9 @@
       before { BuddyCheck.stubs(:enabled?).returns(true) }
       let(:deploy) { deploys(:succeeded_production_test) }
 
-      def create_previous_deploy(ref, stage, successful: true, bypassed: false)
-        job = project.jobs.create!(user: user, command: "foo", status: successful ? "succeeded" : 'failed')
+      def create_previous_deploy(ref, stage, successful: true, bypassed: false, commit: nil)
+        status = successful ? "succeeded" : 'failed'
+        job = project.jobs.create!(user: user, command: "foo", status: status, commit: commit)
         buddy = bypassed ? user : other_user
         Deploy.create!(job: job, reference: ref, stage: stage, buddy: buddy, started_at: Time.now, project: project)
       end
@@ -85,6 +86,15 @@ def create_previous_deploy(ref, stage, successful: true, bypassed: false)
         end
       end
 
+      describe "similar deploy reference with different commit sha" do
+        it "does not start the deploy" do
+          create_previous_deploy(ref1, stage_production_1, commit: 'xyz')
+          Changeset.any_instance.expects(:commits).returns(['xyz'])
+          service.expects(:confirm_deploy).never
+          service.deploy(stage_production_1, reference: ref1)
+        end
+      end
+
       describe "if deploy groups are enabled" do
         before do
           DeployGroup.stubs(:enabled?).returns(true)