diff --git a/lib/custom_wizard/template.rb b/lib/custom_wizard/template.rb
index 9fa197f7..aa4e2fcd 100644
--- a/lib/custom_wizard/template.rb
+++ b/lib/custom_wizard/template.rb
@@ -64,7 +64,7 @@ class CustomWizard::Template
       ensure_wizard_upload_references!(wizard_id)
       PluginStore.remove(CustomWizard::PLUGIN_NAME, wizard.id)
       clear_user_wizard_redirect(wizard_id, after_time: !!wizard.after_time)
-      related_custom_fields = CategoryCustomField.where(name: 'create_topic_wizard', value: wizard.name.parameterize.underscore)
+      related_custom_fields = CategoryCustomField.where(name: 'create_topic_wizard', value: wizard.name.parameterize.underscore.downcase)
       related_custom_fields.destroy_all
     end
 
diff --git a/spec/requests/custom_wizard/admin/wizard_controller_spec.rb b/spec/requests/custom_wizard/admin/wizard_controller_spec.rb
index 7986f565..2ec2da10 100644
--- a/spec/requests/custom_wizard/admin/wizard_controller_spec.rb
+++ b/spec/requests/custom_wizard/admin/wizard_controller_spec.rb
@@ -5,7 +5,7 @@ describe CustomWizard::AdminWizardController do
   fab!(:user1) { Fabricate(:user) }
   fab!(:user2) { Fabricate(:user) }
   let(:template) { get_wizard_fixture("wizard") }
-  let(:category) { Fabricate(:category, custom_fields: { create_topic_wizard: template['name'].parameterize.underscore }) }
+  let(:category) { Fabricate(:category, custom_fields: { create_topic_wizard: template['name'].parameterize.underscore.downcase }) }
 
   before do
     CustomWizard::Template.save(template, skip_jobs: true)
@@ -41,11 +41,11 @@ describe CustomWizard::AdminWizardController do
   end
 
   it "removes wizard templates whilst making sure create_topic_wizard settings for that wizard are removed from Categories" do
-    expect(CategoryCustomField.find_by(category_id: category.id, name: 'create_topic_wizard', value: template['name'].parameterize.underscore)).not_to eq(nil)
+    expect(CategoryCustomField.find_by(category_id: category.id, name: 'create_topic_wizard', value: template['name'].parameterize.underscore.downcase)).not_to eq(nil)
     delete "/admin/wizards/wizard/#{template['id']}.json"
     expect(response.status).to eq(200)
     expect(CustomWizard::Template.exists?(template['id'])).to eq(false)
-    expect(CategoryCustomField.find_by(name: 'create_topic_wizard', value: template['name'].parameterize.underscore)).to eq(nil)
+    expect(CategoryCustomField.find_by(name: 'create_topic_wizard', value: template['name'].parameterize.underscore.downcase)).to eq(nil)
   end
 
   it "saves wizard templates" do