diff --git a/src/cmd/go/testdata/script/mod_off_init.txt b/src/cmd/go/testdata/script/mod_off_init.txt
new file mode 100644
index 0000000000..8dd4bb028c
--- /dev/null
+++ b/src/cmd/go/testdata/script/mod_off_init.txt
@@ -0,0 +1,7 @@
+env GO111MODULE=off
+
+# This script tests that running go mod init with
+# GO111MODULE=off when outside of GOPATH will fatal
+# with an error message.
+! go mod init
+stderr 'go: modules disabled by GO111MODULE=off; see ''go help modules'''