diff --git a/go-fuzz-build/main.go b/go-fuzz-build/main.go
index d8c536ff8..c459496e4 100644
--- a/go-fuzz-build/main.go
+++ b/go-fuzz-build/main.go
@@ -59,7 +59,7 @@ func makeTags() string {
 // that clients can then modify and use for calls to go/packages.
 func basePackagesConfig() *packages.Config {
 	cfg := new(packages.Config)
-	cfg.Env = append(os.Environ(), "GO111MODULE=off")
+	cfg.Env = append(os.Environ(), "GO111MODULE=auto")
 	return cfg
 }