diff --git a/test/integration_test.rb b/test/integration_test.rb
index 93f3131..e29dd91 100644
--- a/test/integration_test.rb
+++ b/test/integration_test.rb
@@ -61,7 +61,7 @@ def test_code_files_option
         File.write(fn, File.read(fn).gsub(/"fizzbuzz"$/, "foo"))
         output = rake('ttnt:test:run')
         assert_match 'No test selected.', output[:stderr],
-          'Changing files which is not specified in code_files should not select tests.'
+          'Changing files which are not specified in code_files should not select any tests.'
 
         fn = 'fizz_detectable.rb'
         File.write(fn, File.read(fn).gsub(/n % 3 == 0$/, "n % 3 == 1"))