diff --git a/experimental/demoprobe/Makefile b/experimental/demoprobe/Makefile
index 70334ba49..b2f4666f0 100644
--- a/experimental/demoprobe/Makefile
+++ b/experimental/demoprobe/Makefile
@@ -1,19 +1,20 @@
 .PHONY: all vet lint build test clean
 
+GO ?= env GO15VENDOREXPERIMENT=1 GOGC=off go
+
 all: build test vet lint
 
 vet:
-	go vet ./...
+	$(GO) vet ./...
 
 lint:
 	golint .
 
 build:
-	go build
+	$(GO) build
 
 test:
-	go test
+	$(GO) test
 
 clean:
-	go clean
-
+	env -u GOGC $(GO) clean
diff --git a/experimental/fixprobe/Makefile b/experimental/fixprobe/Makefile
index 70334ba49..f2bbc9f07 100644
--- a/experimental/fixprobe/Makefile
+++ b/experimental/fixprobe/Makefile
@@ -1,19 +1,21 @@
 .PHONY: all vet lint build test clean
 
+GO ?= env GO15VENDOREXPERIMENT=1 GOGC=off go
+
 all: build test vet lint
 
 vet:
-	go vet ./...
+	$(GO) vet ./...
 
 lint:
 	golint .
 
 build:
-	go build
+	$(GO) build
 
 test:
-	go test
+	env -u GOGC $(GO) test
 
 clean:
-	go clean
+	$(GO) clean
 
diff --git a/experimental/genreport/Makefile b/experimental/genreport/Makefile
index 70334ba49..b2f4666f0 100644
--- a/experimental/genreport/Makefile
+++ b/experimental/genreport/Makefile
@@ -1,19 +1,20 @@
 .PHONY: all vet lint build test clean
 
+GO ?= env GO15VENDOREXPERIMENT=1 GOGC=off go
+
 all: build test vet lint
 
 vet:
-	go vet ./...
+	$(GO) vet ./...
 
 lint:
 	golint .
 
 build:
-	go build
+	$(GO) build
 
 test:
-	go test
+	$(GO) test
 
 clean:
-	go clean
-
+	env -u GOGC $(GO) clean