diff --git a/src/cmd/go/testdata/script/mod_vcs_missing.txt b/src/cmd/go/testdata/script/mod_vcs_missing.txt
index fb146b4415..009bb91c3c 100644
--- a/src/cmd/go/testdata/script/mod_vcs_missing.txt
+++ b/src/cmd/go/testdata/script/mod_vcs_missing.txt
@@ -4,8 +4,25 @@
 env GO111MODULE=on
 env GOPROXY=
 
+cd empty
 ! go list launchpad.net/gocheck
 stderr '"bzr": executable file not found'
+cd ..
 
--- go.mod --
+# 1.11 used to give the cryptic error "cannot find module for path" here, but
+# only for a main package.
+cd main
+! go build
+stderr '"bzr": executable file not found'
+cd ..
+
+-- empty/go.mod --
 module m
+-- main/go.mod --
+module m
+-- main/main.go --
+package main
+
+import _ "launchpad.net/gocheck"
+
+func main() {}