diff --git a/src/cmd/go/testdata/script/test_flags.txt b/src/cmd/go/testdata/script/test_flags.txt
index 7adf4e273c5..afef08840df 100644
--- a/src/cmd/go/testdata/script/test_flags.txt
+++ b/src/cmd/go/testdata/script/test_flags.txt
@@ -15,8 +15,8 @@ stdout '\Aok\s+example.com/x\s+[0-9.s]+\n\z'
 # Even though ./x looks like a package path, the real package should be
 # the implicit '.'.
 ! go test --answer=42 ./x
-stdout '^FAIL\t. \[build failed\]'
-stderr '^\.: no Go files in '$PWD'$'
+stdout '^FAIL\t. \[setup failed\]'
+stderr '^# \.\nno Go files in '$PWD'$'
 
 # However, *flags* that appear after unrecognized flags should still be
 # interpreted as flags, under the (possibly-erroneous) assumption that