diff --git a/Library/Homebrew/cmd/fetch.rb b/Library/Homebrew/cmd/fetch.rb
index 9b896ada143cd8..d1309bdec732d8 100644
--- a/Library/Homebrew/cmd/fetch.rb
+++ b/Library/Homebrew/cmd/fetch.rb
@@ -282,6 +282,7 @@ def run
 
                 previous_pending_line_count = 0
                 remaining_downloads.each do |downloadable, future|
+                  # FIXME: Allow printing full terminal height.
                   break if previous_pending_line_count >= [concurrency, (Tty.height - 1)].min
 
                   $stdout.print Tty.clear_to_end