diff --git a/Makefile b/Makefile
index 570ab33cc..becebdec5 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-GO           ?= GO15VENDOREXPERIMENT=1 go
+GO           ?= go
 GOFMT        ?= $(GO)fmt
 FIRST_GOPATH := $(firstword $(subst :, ,$(shell $(GO) env GOPATH)))
 PROMU        := $(FIRST_GOPATH)/bin/promu