diff --git a/app/controllers/concerns/hyrax/works_controller_behavior.rb b/app/controllers/concerns/hyrax/works_controller_behavior.rb
index 8408d7eca..652b59e7c 100644
--- a/app/controllers/concerns/hyrax/works_controller_behavior.rb
+++ b/app/controllers/concerns/hyrax/works_controller_behavior.rb
@@ -507,8 +507,10 @@ def available_admin_sets
     def inject_show_theme_views
       if show_page_theme && show_page_theme != 'default_show'
         original_paths = view_paths
-        show_theme_view_path = Rails.root.join('app', 'views', "themes", show_page_theme.to_s)
-        prepend_view_path(show_theme_view_path)
+        Hyku::Application.theme_view_path_roots.each do |root|
+          show_theme_view_path = File.join(root, 'app', 'views', "themes", show_page_theme.to_s)
+          prepend_view_path(show_theme_view_path)
+        end
         yield
         # rubocop:disable Lint/UselessAssignment, Layout/SpaceAroundOperators, Style/RedundantParentheses
         # Do NOT change this line. This is calling the Rails view_paths=(paths) method and not a variable assignment.
diff --git a/app/controllers/hyrax/contact_form_controller.rb b/app/controllers/hyrax/contact_form_controller.rb
index e520429e5..4e098736b 100644
--- a/app/controllers/hyrax/contact_form_controller.rb
+++ b/app/controllers/hyrax/contact_form_controller.rb
@@ -104,8 +104,10 @@ def collections(rows: 6)
     def inject_theme_views
       if home_page_theme && home_page_theme != 'default_home'
         original_paths = view_paths
-        home_theme_view_path = Rails.root.join('app', 'views', "themes", home_page_theme.to_s)
-        prepend_view_path(home_theme_view_path)
+        Hyku::Application.theme_view_path_roots.each do |root|
+          home_theme_view_path = File.join(root, 'app', 'views', "themes", home_page_theme.to_s)
+          prepend_view_path(home_theme_view_path)
+        end
         yield
         # rubocop:disable Lint/UselessAssignment, Layout/SpaceAroundOperators, Style/RedundantParentheses
         # Do NOT change this line. This is calling the Rails view_paths=(paths) method and not a variable assignment.
diff --git a/app/controllers/hyrax/pages_controller.rb b/app/controllers/hyrax/pages_controller.rb
index 2c07c8e99..0107739fb 100644
--- a/app/controllers/hyrax/pages_controller.rb
+++ b/app/controllers/hyrax/pages_controller.rb
@@ -101,8 +101,10 @@ def collections(rows: 6)
     def inject_theme_views
       if home_page_theme && home_page_theme != 'default_home'
         original_paths = view_paths
-        home_theme_view_path = Rails.root.join('app', 'views', "themes", home_page_theme.to_s)
-        prepend_view_path(home_theme_view_path)
+        Hyku::Application.theme_view_path_roots.each do |root|
+          home_theme_view_path = File.join(root, 'app', 'views', "themes", home_page_theme.to_s)
+          prepend_view_path(home_theme_view_path)
+        end
         yield
         # rubocop:disable Lint/UselessAssignment, Layout/SpaceAroundOperators, Style/RedundantParentheses
         # Do NOT change this method. This is an override of the view_paths= method and not a variable assignment.
diff --git a/config/application.rb b/config/application.rb
index 060f1df9b..c256d9c00 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -68,6 +68,22 @@ class Application < Rails::Application
     # Add the middleware directory to the eager load paths
     config.eager_load_paths << Rails.root.join('app', 'middleware')
 
+    ##
+    #   @return [Array<String>] an array of strings in which we should be looking for theme view
+    #           candidates.
+    # @see Hyrax::WorksControllerBehavior
+    # @see Hyrax::ContactFormController
+    # @see Hyrax::PagesController
+    # @see https://api.rubyonrails.org/classes/ActionView/ViewPaths.html#method-i-prepend_view_path
+    #
+    # @see .path_for
+    # @see
+    def self.theme_view_path_roots
+      returning_value = [Rails.root.to_s]
+      returning_value.push HykuKnapsack::Engine.root.to_s if defined?(HykuKnapsack)
+      returning_value
+    end
+
     ##
     # @api public
     #
@@ -75,6 +91,7 @@ class Application < Rails::Application
     #
     # @return [String] the path to the file, favoring those found in the knapsack but falling back
     #         to those in the Rails.root.
+    # @see .theme_view_path_roots
     def self.path_for(relative_path)
       if defined?(HykuKnapsack)
         engine_path = HykuKnapsack::Engine.root.join(relative_path)
@@ -93,9 +110,7 @@ def self.path_for(relative_path)
     config.middleware.use Rack::Deflater
 
     # The locale is set by a query parameter, so if it's not found render 404
-    config.action_dispatch.rescue_responses.merge!(
-      "I18n::InvalidLocale" => :not_found
-    )
+    config.action_dispatch.rescue_responses["I18n::InvalidLocale"] = :not_found
 
     if defined?(ActiveElasticJob) && ENV.fetch('HYRAX_ACTIVE_JOB_QUEUE', '') == 'elastic'
       Rails.application.configure do