diff --git a/Makefile b/Makefile
index 14f421a1..fbfc28b4 100644
--- a/Makefile
+++ b/Makefile
@@ -13,6 +13,6 @@
 
 VERSION  := 0.11.0
 TARGET   := node_exporter
-GOFLAGS  := -ldflags "-X main.Version $(VERSION)"
+GOFLAGS  := -ldflags "-X main.Version=$(VERSION)"
 
 include Makefile.COMMON
diff --git a/Makefile.COMMON b/Makefile.COMMON
index 81331606..35ff309e 100644
--- a/Makefile.COMMON
+++ b/Makefile.COMMON
@@ -48,7 +48,7 @@ ifeq ($(GOOS),darwin)
 	RELEASE_SUFFIX ?= -osx$(shell sw_vers -productVersion)
 endif
 
-GO_VERSION ?= 1.4.2
+GO_VERSION ?= 1.5.1
 GOURL      ?= https://golang.org/dl
 GOPKG      ?= go$(GO_VERSION).$(GOOS)-$(GOARCH)$(RELEASE_SUFFIX).tar.gz
 GOPATH     := $(CURDIR)/.build/gopath