diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index c8ea4052f67be41e4945b15cfa938a78b070f8c6..2b22041b3b4b758109b67e05c7fe325b7bddf558 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,9 @@
+*   Generate shallow paths for all children of shallow resources.
+
+    Fixes #15783.
+
+    *Seb Jacobs*
+
 *   JSONP responses are now rendered with the `text/javascript` content type
     when rendering through a `respond_to` block.
 
@@ -177,5 +183,4 @@
 
     *Tony Wooster*
 
-
 Please check [4-1-stable](https://github.com/rails/rails/blob/4-1-stable/actionpack/CHANGELOG.md) for previous changes.
diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb
index 3774b625af6ba709fc212368bfb3532d5179d267..235a8406820055361542d79f008daf579a4db5ad 100644
--- a/actionpack/lib/action_dispatch/routing/mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/mapper.rb
@@ -1434,7 +1434,7 @@ def nested
           end
 
           with_scope_level(:nested) do
-            if shallow? && shallow_nesting_depth > 1
+            if shallow? && shallow_nesting_depth >= 1
               shallow_scope(parent_resource.nested_scope, nested_options) { yield }
             else
               scope(parent_resource.nested_scope, nested_options) { yield }
diff --git a/actionpack/test/dispatch/routing_test.rb b/actionpack/test/dispatch/routing_test.rb
index 130f2b5b215725339d9b1f0a651db7b3218ae34f..78940ef6cc6eeb182fc749bf15f36e6b69988184 100644
--- a/actionpack/test/dispatch/routing_test.rb
+++ b/actionpack/test/dispatch/routing_test.rb
@@ -2022,6 +2022,28 @@ def test_shallow_deeply_nested_resources
     assert_equal '/blogs/1/posts/2/comments/new', new_blog_post_comment_path(:blog_id => 1, :post_id => 2)
   end
 
+  def test_direct_children_of_shallow_resources
+    draw do
+      resources :blogs do
+        resources :posts, shallow: true do
+          resources :comments
+        end
+      end
+    end
+
+    post '/posts/1/comments'
+    assert_equal 'comments#create', @response.body
+    assert_equal '/posts/1/comments', post_comments_path('1')
+
+    get '/posts/2/comments/new'
+    assert_equal 'comments#new', @response.body
+    assert_equal '/posts/2/comments/new', new_post_comment_path('2')
+
+    get '/posts/1/comments'
+    assert_equal 'comments#index', @response.body
+    assert_equal '/posts/1/comments', post_comments_path('1')
+  end
+
   def test_shallow_nested_resources_within_scope
     draw do
       scope '/hello' do