diff --git a/goversion.go b/goversion.go
new file mode 100644
index 0000000000..ac7728b38b
--- /dev/null
+++ b/goversion.go
@@ -0,0 +1,3 @@
+// +build go1.5
+
+package goversion
diff --git a/goversion_unsupported.go b/goversion_unsupported.go
new file mode 100644
index 0000000000..2acfd5d2cc
--- /dev/null
+++ b/goversion_unsupported.go
@@ -0,0 +1,7 @@
+// +build !go1.5
+
+package goversion
+
+func error() {
+	`Bad go version, please install a version greater than or equal to 1.5`
+}