diff --git a/db/migrate/20160118174335_rebake_html_customizations.rb b/db/migrate/20160118174335_rebake_html_customizations.rb
new file mode 100644
index 0000000000..112e47c303
--- /dev/null
+++ b/db/migrate/20160118174335_rebake_html_customizations.rb
@@ -0,0 +1,10 @@
+class RebakeHtmlCustomizations < ActiveRecord::Migration
+  def change
+    execute "UPDATE site_customizations SET body_tag_baked = NULL,
+                                            head_tag_baked = NULL,
+                                            header_baked = NULL,
+                                            mobile_header_baked = NULL,
+                                            footer_baked = NULL,
+                                            mobile_footer_baked = NULL"
+  end
+end