diff --git a/Formula/trash-cli.rb b/Formula/trash-cli.rb
index 181cb06e3e..3762ce0141 100644
--- a/Formula/trash-cli.rb
+++ b/Formula/trash-cli.rb
@@ -24,7 +24,7 @@ class TrashCli < Formula
 
   test do
     touch "testfile"
-    assert File.exist?("testfile")
+    assert_predicate testpath/"testfile", :exist?
     system bin/"trash-put", "testfile"
     assert !File.exist?("testfile")
   end