1 files changed, 9 insertions, 1 deletions
diff --git a/activerecord/lib/rails/generators/active_record/migration/templates/migration.rb b/activerecord/lib/rails/generators/active_record/migration/templates/migration.rb
index 34eaffcb0f..d5c07aecd3 100644
--- a/activerecord/lib/rails/generators/active_record/migration/templates/migration.rb
+++ b/activerecord/lib/rails/generators/active_record/migration/templates/migration.rb
@@ -12,6 +12,14 @@ class <%= migration_class_name %> < ActiveRecord::Migration
   <%- end -%>
 <%- end -%>
   end
+<%- elsif migration_action == 'join' -%>
+  def change
+    create_join_table :<%= join_tables.first %>, :<%= join_tables.second %> do |t|
+    <%- attributes.each do |attribute| -%>
+      <%= '# ' unless attribute.has_index? -%>t.index <%= attribute.index_name %><%= attribute.inject_index_options %>
+    <%- end -%>
+    end
+  end
 <%- else -%>
   def up
 <% attributes.each do |attribute| -%>
@@ -40,4 +48,4 @@ class <%= migration_class_name %> < ActiveRecord::Migration
 <%- end -%>
   end
 <%- end -%>
-end
-\ No newline at end of file
+end