diff --git a/sdk_container/src/third_party/coreos-overlay/app-admin/kubelet-wrapper/files/kubelet-wrapper b/sdk_container/src/third_party/coreos-overlay/app-admin/kubelet-wrapper/files/kubelet-wrapper
index 004649ea0e..4dfba1d358 100644
--- a/sdk_container/src/third_party/coreos-overlay/app-admin/kubelet-wrapper/files/kubelet-wrapper
+++ b/sdk_container/src/third_party/coreos-overlay/app-admin/kubelet-wrapper/files/kubelet-wrapper
@@ -1,5 +1,9 @@
 #!/bin/bash
-# Wrapper for launching kubelet via rkt-fly stage1
+# Wrapper for launching kubelet via rkt-fly stage1. 
+#
+# Make sure to set KUBELET_VERSION to an image tag published here:
+# https://quay.io/repository/coreos/hyperkube?tab=tags Alternatively,
+# override $KUBELET_ACI to a custom location.
 
 set -e
 
diff --git a/sdk_container/src/third_party/coreos-overlay/app-admin/kubelet-wrapper/kubelet-wrapper-0.0.1-r2.ebuild b/sdk_container/src/third_party/coreos-overlay/app-admin/kubelet-wrapper/kubelet-wrapper-0.0.1-r3.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/app-admin/kubelet-wrapper/kubelet-wrapper-0.0.1-r2.ebuild
rename to sdk_container/src/third_party/coreos-overlay/app-admin/kubelet-wrapper/kubelet-wrapper-0.0.1-r3.ebuild