diff --git a/app/services/merge/merge_organisations_service.rb b/app/services/merge/merge_organisations_service.rb
index 87c0aef63..3d922e8d7 100644
--- a/app/services/merge/merge_organisations_service.rb
+++ b/app/services/merge/merge_organisations_service.rb
@@ -16,9 +16,9 @@ class Merge::MergeOrganisationsService
         merge_schemes_and_locations(merging_organisation)
         merge_lettings_logs(merging_organisation)
         merge_sales_logs(merging_organisation)
+        mark_organisation_as_merged(merging_organisation)
       end
       @absorbing_organisation.save!
-      mark_organisations_as_merged
       Rails.logger.info(@users_success_message)
       Rails.logger.info(@schemes_success_message)
     rescue ActiveRecord::RecordInvalid => e
@@ -99,8 +99,8 @@ private
     end
   end
 
-  def mark_organisations_as_merged
-    # @merging_organisations.update_all(merge_date: Time.zone.today)
+  def mark_organisation_as_merged(merging_organisation)
+    merging_organisation.update(merge_date: Time.zone.today)
   end
 
   def merge_boolean_organisation_attribute(attribute)
diff --git a/spec/services/merge/merge_organisations_service_spec.rb b/spec/services/merge/merge_organisations_service_spec.rb
index 3382c5d24..9ec6144b7 100644
--- a/spec/services/merge/merge_organisations_service_spec.rb
+++ b/spec/services/merge/merge_organisations_service_spec.rb
@@ -22,10 +22,11 @@ RSpec.describe Merge::MergeOrganisationsService do
         expect(merging_organisation_user.organisation).to eq(absorbing_organisation)
       end
 
-      xit "sets merge date on merged organisation" do
+      it "sets merge date on merged organisation" do
         merge_organisations_service.call
 
-        expect(merging_organisation.merge_date).to eq(Time.zone.today)
+        merging_organisation.reload
+        expect(merging_organisation.merge_date.to_date).to eq(Time.zone.today)
       end
 
       it "combines organisation data" do