diff --git a/config/software/gitlab-rails.rb b/config/software/gitlab-rails.rb
index 7e945b6..902dab9 100644
--- a/config/software/gitlab-rails.rb
+++ b/config/software/gitlab-rails.rb
@@ -80,6 +80,11 @@ build do
   # Remove directories that will be created by `gitlab-ctl reconfigure`
   command "rm -rf log tmp public/uploads"
 
+  # Because db/schema.rb is modified by `rake db:migrate` after installation,
+  # keep a copy of schema.rb around in case we need it. (I am looking at you,
+  # mysql-postgresql-converter.)
+  cp "db/schema.rb db/schema.rb.bundled"
+
   command "mkdir -p #{install_dir}/embedded/service/gitlab-rails"
   command "#{install_dir}/embedded/bin/rsync -a --delete --exclude=.git/*** --exclude=.gitignore ./ #{install_dir}/embedded/service/gitlab-rails/"
 
--
libgit2 0.21.2