diff --git a/lib/mrsk/commands/app.rb b/lib/mrsk/commands/app.rb
index 4c1491c6..6b4c4de0 100644
--- a/lib/mrsk/commands/app.rb
+++ b/lib/mrsk/commands/app.rb
@@ -1,3 +1,4 @@
+# FIXME: Use Shellwords.join
 class Mrsk::Commands::App < Mrsk::Commands::Base
   def push
     # TODO: Run 'docker buildx create --use' when needed