diff --git a/docs/k8s/Makefile b/docs/k8s/Makefile
index 6b3d8ed50..5c9108dec 100644
--- a/docs/k8s/Makefile
+++ b/docs/k8s/Makefile
@@ -4,7 +4,7 @@
 
 ROUTES ?= ""
 SA_NAME ?= tailscale
-KUBE_SECRET ?= tailscale
+TS_KUBE_SECRET ?= tailscale
 
 rbac:
 	@sed -e "s;{{TS_KUBE_SECRET}};$(TS_KUBE_SECRET);g" role.yaml | kubectl apply -f -