diff --git a/app/services/exports/sales_log_export_constants.rb b/app/services/exports/sales_log_export_constants.rb
index c9bf3d60c..09a0d5d68 100644
--- a/app/services/exports/sales_log_export_constants.rb
+++ b/app/services/exports/sales_log_export_constants.rb
@@ -12,7 +12,7 @@ module Exports::SalesLogExportConstants
                       "DAY",
                       "MONTH",
                       "YEAR",
-                      "DUPLICATE_SET_ID",
+                      "DUPLICATESET",
                       "CREATEDDATE",
                       "UPLOADDATE",
                       "OWNINGORGID",
@@ -94,7 +94,7 @@ module Exports::SalesLogExportConstants
                       "BULKUPLOADID",
                       "VALUE_VALUE_CHECK",
                       "PREVSHARED",
-                      "STAIRCASESALE",
+                      "STAIRCASETOSALE",
                       "ETHNICGROUP2",
                       "ETHNIC2",
                       "BUY2LIVING",
diff --git a/app/services/exports/sales_log_export_service.rb b/app/services/exports/sales_log_export_service.rb
index c78212155..fa806f6ab 100644
--- a/app/services/exports/sales_log_export_service.rb
+++ b/app/services/exports/sales_log_export_service.rb
@@ -117,6 +117,8 @@ module Exports
       attribute_hash["stairinitialmonth"] = sales_log.initialpurchase&.month
       attribute_hash["stairinitialyear"] = sales_log.initialpurchase&.year
       attribute_hash["mscharge_value_check"] = sales_log.monthly_charges_value_check
+      attribute_hash["duplicateset"] = sales_log.duplicate_set_id
+      attribute_hash["staircasetosale"] = sales_log.staircasesale
 
       attribute_hash.transform_keys!(&:upcase)
       attribute_hash
diff --git a/spec/fixtures/exports/sales_log.xml b/spec/fixtures/exports/sales_log.xml
index 281f53308..37dc6dda5 100644
--- a/spec/fixtures/exports/sales_log.xml
+++ b/spec/fixtures/exports/sales_log.xml
@@ -81,11 +81,9 @@
     <HHTYPE>6</HHTYPE>
     <VALUE_VALUE_CHECK/>
     <PREVSHARED>2</PREVSHARED>
-    <STAIRCASESALE/>
     <BUY2LIVING>3</BUY2LIVING>
     <UPRN/>
     <COUNTY/>
-    <DUPLICATE_SET_ID/>
     <ADDRESS_SEARCH_VALUE_CHECK/>
     <FIRSTSTAIR/>
     <NUMSTAIR/>
@@ -150,5 +148,7 @@
     <STAIRINITIALMONTH/>
     <STAIRINITIALYEAR/>
     <MSCHARGE_VALUE_CHECK/>
+    <DUPLICATESET/>
+    <STAIRCASETOSALE/>
   </form>
 </forms>
diff --git a/spec/fixtures/exports/sales_log_2024.xml b/spec/fixtures/exports/sales_log_2024.xml
index c39f2eee7..e894ac973 100644
--- a/spec/fixtures/exports/sales_log_2024.xml
+++ b/spec/fixtures/exports/sales_log_2024.xml
@@ -81,11 +81,9 @@
     <HHTYPE>6</HHTYPE>
     <VALUE_VALUE_CHECK/>
     <PREVSHARED>2</PREVSHARED>
-    <STAIRCASESALE/>
     <BUY2LIVING>3</BUY2LIVING>
     <UPRN/>
     <COUNTY/>
-    <DUPLICATE_SET_ID/>
     <ADDRESS_SEARCH_VALUE_CHECK/>
     <FIRSTSTAIR/>
     <NUMSTAIR/>
@@ -150,5 +148,7 @@
     <STAIRINITIALMONTH/>
     <STAIRINITIALYEAR/>
     <MSCHARGE_VALUE_CHECK/>
+    <DUPLICATESET/>
+    <STAIRCASETOSALE/>
   </form>
 </forms>
diff --git a/spec/services/exports/sales_log_export_service_spec.rb b/spec/services/exports/sales_log_export_service_spec.rb
index ab85c92e3..c11c13712 100644
--- a/spec/services/exports/sales_log_export_service_spec.rb
+++ b/spec/services/exports/sales_log_export_service_spec.rb
@@ -315,7 +315,7 @@ RSpec.describe Exports::SalesLogExportService do
       let!(:sales_log) { FactoryBot.create(:sales_log, :export, duplicate_set_id: 123) }
 
       def replace_duplicate_set_id(export_file)
-        export_file.sub!("<DUPLICATE_SET_ID/>", "<DUPLICATE_SET_ID>123</DUPLICATE_SET_ID>")
+        export_file.sub!("<DUPLICATESET/>", "<DUPLICATESET>123</DUPLICATESET>")
       end
 
       it "generates an XML export file with the expected content within the ZIP file" do