diff --git a/src/cmd/go/testdata/script/mod_test.txt b/src/cmd/go/testdata/script/mod_test.txt
index caeb25ada8..af4fd76d70 100644
--- a/src/cmd/go/testdata/script/mod_test.txt
+++ b/src/cmd/go/testdata/script/mod_test.txt
@@ -1,5 +1,8 @@
 env GO111MODULE=on
 
+# TODO(bcmills): Convert the 'go test' calls below to 'go list -test' once 'go
+# list' is more sensitive to package loading errors.
+
 # A test in the module's root package should work.
 cd a/
 cp go.mod.empty go.mod
@@ -48,6 +51,10 @@ cd ../d_test
 go test
 stdout PASS
 
+cd ../e
+go test
+stdout PASS
+
 -- a/go.mod.empty --
 module example.com/user/a