diff --git a/Library/Homebrew/cask/lib/hbc/artifact/abstract_uninstall.rb b/Library/Homebrew/cask/lib/hbc/artifact/abstract_uninstall.rb
index 94e906a73e..d299733d89 100644
--- a/Library/Homebrew/cask/lib/hbc/artifact/abstract_uninstall.rb
+++ b/Library/Homebrew/cask/lib/hbc/artifact/abstract_uninstall.rb
@@ -222,7 +222,7 @@ module Hbc
         paths.each do |path|
           resolved_path = Pathname.new(path)
 
-          resolved_path = resolved_path.expand_path if path.start_with?("~")
+          resolved_path = resolved_path.expand_path if path.to_s.start_with?("~")
 
           if resolved_path.relative? || resolved_path.split.any? { |part| part.to_s == ".." }
             opoo "Skipping #{Formatter.identifier(action)} for relative path '#{path}'."