diff --git a/lib/action_view/template/handlers/prawn.rb b/lib/action_view/template/handlers/prawn.rb
new file mode 100755
index 0000000..fc87887
--- /dev/null
+++ b/lib/action_view/template/handlers/prawn.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+require 'prawn'
+
+module ActionView
+  module Template::Handlers
+    class Prawn
+      def self.register!
+        ::ActionView::Template.register_template_handler :prawn, self
+      end
+
+      def self.call(template, source = template.source)
+        %(extend #{DocumentProxy}; #{source}; pdf.render)
+      end
+
+      module DocumentProxy
+        def pdf
+          @pdf ||= ::Prawn::Document.new(::Spree::PrintInvoice::Config[:prawn_options])
+        end
+
+        private
+
+        def method_missing(method, *args, &block)
+          pdf.respond_to?(method) ? pdf.send(method, *args, &block) : super
+        end
+      end
+    end
+  end
+end
+
+::ActionView::Template::Handlers::Prawn.register!
diff --git a/lib/prawn_handler.rb b/lib/prawn_handler.rb
deleted file mode 100755
index 290f4e7..0000000
--- a/lib/prawn_handler.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# frozen_string_literal: true
-
-require 'prawn'
-
-module ActionView
-  module Template
-    module Handlers
-      class Prawn
-        def self.register!
-          Template.register_template_handler :prawn, self
-        end
-
-        def self.call(template, source = template.source)
-          %(extend #{DocumentProxy}; #{source}; pdf.render)
-        end
-
-        module DocumentProxy
-          def pdf
-            @pdf ||= ::Prawn::Document.new(Spree::PrintInvoice::Config[:prawn_options])
-          end
-
-          private
-
-          def method_missing(method, *args, &block)
-            pdf.respond_to?(method) ? pdf.send(method, *args, &block) : super
-          end
-        end
-      end
-    end
-  end
-end
-
-ActionView::Template::Handlers::Prawn.register!
diff --git a/lib/solidus_print_invoice.rb b/lib/solidus_print_invoice.rb
index 1ba86a6..7a0c7fb 100755
--- a/lib/solidus_print_invoice.rb
+++ b/lib/solidus_print_invoice.rb
@@ -3,7 +3,7 @@
 require 'solidus_print_invoice/version'
 require 'solidus_print_invoice/engine'
 
-require 'prawn_handler'
+require 'action_view/template/handlers/prawn'
 
 module Spree
   module PrintInvoice