diff --git a/app/controllers/alchemy/admin/attachments_controller.rb b/app/controllers/alchemy/admin/attachments_controller.rb
index 9b5b9aa490..02b6bb3b9c 100644
--- a/app/controllers/alchemy/admin/attachments_controller.rb
+++ b/app/controllers/alchemy/admin/attachments_controller.rb
@@ -75,7 +75,7 @@ def destroy
 
       def download
         @attachment = Attachment.find(params[:id])
-        send_data @attachment.file.data, {
+        send_file @attachment.file.path, {
           filename: @attachment.file_name,
           type: @attachment.file_mime_type
         }
diff --git a/app/controllers/alchemy/attachments_controller.rb b/app/controllers/alchemy/attachments_controller.rb
index 84316e1a06..dcd6cd807e 100644
--- a/app/controllers/alchemy/attachments_controller.rb
+++ b/app/controllers/alchemy/attachments_controller.rb
@@ -5,8 +5,8 @@ class AttachmentsController < BaseController
 
     # sends file inline. i.e. for viewing pdfs/movies in browser
     def show
-      send_data(
-        @attachment.file.data,
+      send_file(
+        @attachment.file.path,
         {
           filename: @attachment.file_name,
           type: @attachment.file_mime_type,
@@ -17,8 +17,8 @@ def show
 
     # sends file as attachment. aka download
     def download
-      send_data(
-        @attachment.file.data, {
+      send_file(
+        @attachment.file.path, {
           filename: @attachment.file_name,
           type: @attachment.file_mime_type
         }
diff --git a/spec/controllers/admin/attachments_controller_spec.rb b/spec/controllers/admin/attachments_controller_spec.rb
index 9854f0d5f5..d3904d2955 100644
--- a/spec/controllers/admin/attachments_controller_spec.rb
+++ b/spec/controllers/admin/attachments_controller_spec.rb
@@ -203,7 +203,7 @@ module Alchemy
       end
 
       it "should send the data to the browser" do
-        expect(controller).to receive(:send_data)
+        expect(controller).to receive(:send_file)
         alchemy_get :download, id: attachment.id
       end
     end