diff --git a/lib/cap-pack/recipes/rails/migrate_if_changed.rb b/lib/cap-pack/recipes/rails/migrate_if_changed.rb
new file mode 100644
index 0000000..6f4e3fb
--- /dev/null
+++ b/lib/cap-pack/recipes/rails/migrate_if_changed.rb
@@ -0,0 +1,9 @@
+namespace :rails do
+  desc 'Migrate the database if db/schema.rb has changed since the last revision'
+  task :migrate_if_changed do
+    if !(result = %x{git log #{current_revision}..#{revision} db/schema.rb}.strip).empty?
+      top.deploy.migrate
+    end
+  end
+end
+
diff --git a/lib/cap-pack/recipes/tail.rb b/lib/cap-pack/recipes/tail.rb
index 4191c83..aface01 100644
--- a/lib/cap-pack/recipes/tail.rb
+++ b/lib/cap-pack/recipes/tail.rb
@@ -1,7 +1,7 @@
 desc "Tail all or a single remote file"
 task :tail do
   pattern = ENV["LOGFILE_PATTERN"] || "*.log"
-  run "tail -f #{shared_path}/log/#{ENV["LOGFILE_PATTERN"]}" do |channel, stream, data|
+  run "tail -f #{shared_path}/log/#{pattern}" do |channel, stream, data|
     puts "#{data}"
     break if stream == :err
   end