diff --git a/app/models/form/lettings/pages/person_sex_registered_at_birth.rb b/app/models/form/lettings/pages/person_sex_registered_at_birth.rb
index 3c5b033ba..ea1586f5e 100644
--- a/app/models/form/lettings/pages/person_sex_registered_at_birth.rb
+++ b/app/models/form/lettings/pages/person_sex_registered_at_birth.rb
@@ -6,7 +6,7 @@ class Form::Lettings::Pages::PersonSexRegisteredAtBirth < ::Form::Page
     @id = "person_#{person_index}_sex_registered_at_birth"
     @person_index = person_index
     @depends_on = [
-      { "details_known_#{person_index}" => 1 },
+      { "details_known_#{person_index}" => 0 },
     ]
   end
 
diff --git a/app/models/form/lettings/questions/person_sex_registered_at_birth.rb b/app/models/form/lettings/questions/person_sex_registered_at_birth.rb
index 0ac96f841..fa9ac4545 100644
--- a/app/models/form/lettings/questions/person_sex_registered_at_birth.rb
+++ b/app/models/form/lettings/questions/person_sex_registered_at_birth.rb
@@ -6,11 +6,11 @@ class Form::Lettings::Questions::PersonSexRegisteredAtBirth < ::Form::Question
     @type = "radio"
     @check_answers_card_number = person_index
     @inferred_check_answers_value = [{
-                                       "condition" => {
-                                         id => "R",
-                                       },
-                                       "value" => "Person prefers not to say",
-                                     }]
+      "condition" => {
+        id => "R",
+      },
+      "value" => "Person prefers not to say",
+    }]
     @answer_options = ANSWER_OPTIONS
     @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year] || QUESTION_NUMBER_FROM_YEAR[QUESTION_NUMBER_FROM_YEAR.keys.max]
   end
diff --git a/app/services/exports/lettings_log_export_service.rb b/app/services/exports/lettings_log_export_service.rb
index a71423d81..811d0e439 100644
--- a/app/services/exports/lettings_log_export_service.rb
+++ b/app/services/exports/lettings_log_export_service.rb
@@ -183,7 +183,7 @@ module Exports
         included_fields.merge(PRE_2024_EXPORT_FIELDS)
       end
 
-      if !lettings_log.form.start_year_2025_or_later?
+      unless lettings_log.form.start_year_2025_or_later?
         included_fields.merge(PRE_2025_EXPORT_FIELDS)
       end
 
diff --git a/spec/models/form/lettings/pages/person_sex_registered_at_birth_spec.rb b/spec/models/form/lettings/pages/person_sex_registered_at_birth_spec.rb
index 098911bfc..628fe5f30 100644
--- a/spec/models/form/lettings/pages/person_sex_registered_at_birth_spec.rb
+++ b/spec/models/form/lettings/pages/person_sex_registered_at_birth_spec.rb
@@ -30,7 +30,7 @@ RSpec.describe Form::Lettings::Pages::PersonSexRegisteredAtBirth, type: :model d
     end
 
     it "has correct depends_on" do
-      expect(page.depends_on).to eq([{ "details_known_2" => 1 }])
+      expect(page.depends_on).to eq([{ "details_known_2" => 0 }])
     end
   end
 
@@ -47,7 +47,7 @@ RSpec.describe Form::Lettings::Pages::PersonSexRegisteredAtBirth, type: :model d
     end
 
     it "has correct depends_on" do
-      expect(page.depends_on).to eq([{ "details_known_3" => 1 }])
+      expect(page.depends_on).to eq([{ "details_known_3" => 0 }])
     end
   end
 
@@ -64,7 +64,7 @@ RSpec.describe Form::Lettings::Pages::PersonSexRegisteredAtBirth, type: :model d
     end
 
     it "has correct depends_on" do
-      expect(page.depends_on).to eq([{ "details_known_4" => 1 }])
+      expect(page.depends_on).to eq([{ "details_known_4" => 0 }])
     end
   end
 
@@ -81,7 +81,7 @@ RSpec.describe Form::Lettings::Pages::PersonSexRegisteredAtBirth, type: :model d
     end
 
     it "has correct depends_on" do
-      expect(page.depends_on).to eq([{ "details_known_5" => 1 }])
+      expect(page.depends_on).to eq([{ "details_known_5" => 0 }])
     end
   end
 
@@ -98,7 +98,7 @@ RSpec.describe Form::Lettings::Pages::PersonSexRegisteredAtBirth, type: :model d
     end
 
     it "has correct depends_on" do
-      expect(page.depends_on).to eq([{ "details_known_6" => 1 }])
+      expect(page.depends_on).to eq([{ "details_known_6" => 0 }])
     end
   end
 
@@ -115,7 +115,7 @@ RSpec.describe Form::Lettings::Pages::PersonSexRegisteredAtBirth, type: :model d
     end
 
     it "has correct depends_on" do
-      expect(page.depends_on).to eq([{ "details_known_7" => 1 }])
+      expect(page.depends_on).to eq([{ "details_known_7" => 0 }])
     end
   end
 
@@ -132,7 +132,7 @@ RSpec.describe Form::Lettings::Pages::PersonSexRegisteredAtBirth, type: :model d
     end
 
     it "has correct depends_on" do
-      expect(page.depends_on).to eq([{ "details_known_8" => 1 }])
+      expect(page.depends_on).to eq([{ "details_known_8" => 0 }])
     end
   end
 end
diff --git a/spec/models/form/lettings/questions/person_sex_registered_at_birth_spec.rb b/spec/models/form/lettings/questions/person_sex_registered_at_birth_spec.rb
index e80417c5b..7bf47da65 100644
--- a/spec/models/form/lettings/questions/person_sex_registered_at_birth_spec.rb
+++ b/spec/models/form/lettings/questions/person_sex_registered_at_birth_spec.rb
@@ -145,8 +145,8 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
 
     it "has the correct inferred_check_answers_value" do
       expect(question.inferred_check_answers_value).to eq([
-                                                            { "condition" => { "sexrab7" => "R" }, "value" => "Person prefers not to say" },
-                                                          ])
+        { "condition" => { "sexrab7" => "R" }, "value" => "Person prefers not to say" },
+      ])
     end
   end
 
@@ -164,8 +164,8 @@ RSpec.describe Form::Lettings::Questions::PersonSexRegisteredAtBirth, type: :mod
 
     it "has the correct inferred_check_answers_value" do
       expect(question.inferred_check_answers_value).to eq([
-                                                            { "condition" => { "sexrab8" => "R" }, "value" => "Person prefers not to say" },
-                                                          ])
+        { "condition" => { "sexrab8" => "R" }, "value" => "Person prefers not to say" },
+      ])
     end
   end
 end