diff --git a/app/serializers/build_action_entity.rb b/app/serializers/build_action_entity.rb
index 3e72892d58497fe2a85d35bd0e8ffb53db022adc..184f5fd4b52490c89d8876227bf52e20017bd001 100644
--- a/app/serializers/build_action_entity.rb
+++ b/app/serializers/build_action_entity.rb
@@ -2,7 +2,7 @@ class BuildActionEntity < Grape::Entity
   include RequestAwareEntity
 
   expose :name do |build|
-    build.name.humanize
+    build.name
   end
 
   expose :path do |build|
diff --git a/app/views/projects/ci/pipelines/_pipeline.html.haml b/app/views/projects/ci/pipelines/_pipeline.html.haml
index 6ce586cc8f63beab6f9b886901b382c4303c2a08..990bfbcf951f6d24796c4c9f7960fc64d50ec398 100644
--- a/app/views/projects/ci/pipelines/_pipeline.html.haml
+++ b/app/views/projects/ci/pipelines/_pipeline.html.haml
@@ -86,7 +86,7 @@
                   %li
                     = link_to play_namespace_project_build_path(pipeline.project.namespace, pipeline.project, build), method: :post, rel: 'nofollow' do
                       = custom_icon('icon_play')
-                      %span= build.name.humanize
+                      %span= build.name
           - if artifacts.present?
             .btn-group
               %button.dropdown-toggle.btn.btn-default.build-artifacts.js-pipeline-dropdown-download{ type: 'button', 'data-toggle' => 'dropdown' }
diff --git a/changelogs/unreleased/25946-manual-pipeline-dropdown-casing.yml b/changelogs/unreleased/25946-manual-pipeline-dropdown-casing.yml
new file mode 100644
index 0000000000000000000000000000000000000000..b753c8233489377f1bad977c5c342383907c6141
--- /dev/null
+++ b/changelogs/unreleased/25946-manual-pipeline-dropdown-casing.yml
@@ -0,0 +1,4 @@
+---
+title: Use original casing for build action text
+merge_request: 8387
+author:
diff --git a/spec/features/projects/pipelines/pipelines_spec.rb b/spec/features/projects/pipelines/pipelines_spec.rb
index 3ba996e2e1004ac5f0066dbaffe1dfda1894be6e..ca18ac073d89a8d1d224861f96f192877c7ca537 100644
--- a/spec/features/projects/pipelines/pipelines_spec.rb
+++ b/spec/features/projects/pipelines/pipelines_spec.rb
@@ -128,13 +128,13 @@ describe 'Pipelines', :feature, :js do
         it 'has link to the manual action' do
           find('.js-pipeline-dropdown-manual-actions').click
 
-          expect(page).to have_link('Manual build')
+          expect(page).to have_link('manual build')
         end
 
         context 'when manual action was played' do
           before do
             find('.js-pipeline-dropdown-manual-actions').click
-            click_link('Manual build')
+            click_link('manual build')
           end
 
           it 'enqueues manual action job' do
diff --git a/spec/serializers/build_action_entity_spec.rb b/spec/serializers/build_action_entity_spec.rb
index 383704572b164dd8503755e287dc16ec156ebed9..0f7be8b2c39baf569fc220f6da96a9d41663a2f3 100644
--- a/spec/serializers/build_action_entity_spec.rb
+++ b/spec/serializers/build_action_entity_spec.rb
@@ -10,8 +10,8 @@ describe BuildActionEntity do
   describe '#as_json' do
     subject { entity.as_json }
 
-    it 'contains humanized build name' do
-      expect(subject[:name]).to eq 'Test build'
+    it 'contains original build name' do
+      expect(subject[:name]).to eq 'test_build'
     end
 
     it 'contains path to the action play' do