diff --git a/Library/Homebrew/utils/tty.rb b/Library/Homebrew/utils/tty.rb
index de549766b8a505..2dd129eadf2135 100644
--- a/Library/Homebrew/utils/tty.rb
+++ b/Library/Homebrew/utils/tty.rb
@@ -63,7 +63,7 @@ def show_cursor
 
     sig { returns(T.nilable([Integer, Integer])) }
     def size
-      `/bin/stty size 2>/dev/null`.split&.map(&:to_i)
+      `/bin/stty size 2>/dev/null`.presence&.split&.map(&:to_i)
     end
 
     sig { returns(Integer) }