diff --git a/activestorage/lib/tasks/activestorage.rake b/activestorage/lib/tasks/activestorage.rake
index 296e91afa1..ac254d717f 100644
--- a/activestorage/lib/tasks/activestorage.rake
+++ b/activestorage/lib/tasks/activestorage.rake
@@ -1,6 +1,9 @@
 # frozen_string_literal: true
 
 namespace :active_storage do
+  # Prevent migration installation task from showing up twice.
+  Rake::Task["install:migrations"].clear_comments
+
   desc "Copy over the migration needed to the application"
   task install: :environment do
     if Rake::Task.task_defined?("active_storage:install:migrations")