diff --git a/changelogs/unreleased/dz-scope-profile-routes.yml b/changelogs/unreleased/dz-scope-profile-routes.yml
new file mode 100644
index 0000000000000000000000000000000000000000..6557ce8da95e235a7e8b7774400d0a9548202117
--- /dev/null
+++ b/changelogs/unreleased/dz-scope-profile-routes.yml
@@ -0,0 +1,5 @@
+---
+title: Copy profile route under - scope
+merge_request: 45045
+author:
+type: other
diff --git a/config/routes.rb b/config/routes.rb
index dda505a3793f1699ff02a0e012f885d3bc923af9..5c939e003c6d616d91cf5495543417d9ee29aa9f 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -274,6 +274,14 @@
     draw :snippets
   end
 
+  # Serve profile routes under /-/ scope.
+  # To ensure an old unscoped routing is used for the UI we need to
+  # add prefix 'as' to the scope routing and place it below original routing.
+  # Issue https://gitlab.com/gitlab-org/gitlab/-/issues/210024
+  scope '-', as: :scoped do
+    draw :profile
+  end
+
   root to: "root#index"
 
   get '*unmatched_route', to: 'application#route_not_found'
diff --git a/spec/routing/routing_spec.rb b/spec/routing/routing_spec.rb
index 6b7a0d018f1c7ba80e762ca3565640d85fb7b1d8..f665dc31ee46bd23a6f899047c8e818153813fb7 100644
--- a/spec/routing/routing_spec.rb
+++ b/spec/routing/routing_spec.rb
@@ -133,6 +133,10 @@
   it "to #show" do
     expect(get("/profile")).to route_to('profiles#show')
   end
+
+  it 'to #show from scope routing' do
+    expect(get("/-/profile")).to route_to('profiles#show')
+  end
 end
 
 # profile_preferences GET      /profile/preferences(.:format) profiles/preferences#show