diff --git a/docs/k8s/proxy.yaml b/docs/k8s/proxy.yaml
index 7fe11e8a0..b7ceb0fbb 100644
--- a/docs/k8s/proxy.yaml
+++ b/docs/k8s/proxy.yaml
@@ -37,7 +37,7 @@ spec:
       valueFrom:
         secretKeyRef:
           name: tailscale-auth
-          key: AUTH_KEY
+          key: TS_AUTH_KEY
           optional: true
     - name: TS_DEST_IP
       value: "{{TS_DEST_IP}}"
diff --git a/docs/k8s/subnet.yaml b/docs/k8s/subnet.yaml
index 428c255bc..043cd344d 100644
--- a/docs/k8s/subnet.yaml
+++ b/docs/k8s/subnet.yaml
@@ -23,7 +23,7 @@ spec:
       valueFrom:
         secretKeyRef:
           name: tailscale-auth
-          key: AUTH_KEY
+          key: TS_AUTH_KEY
           optional: true
     - name: TS_ROUTES
       value: "{{TS_ROUTES}}"
diff --git a/docs/k8s/userspace-sidecar.yaml b/docs/k8s/userspace-sidecar.yaml
index 3a534a930..f7fd12205 100644
--- a/docs/k8s/userspace-sidecar.yaml
+++ b/docs/k8s/userspace-sidecar.yaml
@@ -26,5 +26,5 @@ spec:
       valueFrom:
         secretKeyRef:
           name: tailscale-auth
-          key: AUTH_KEY
+          key: TS_AUTH_KEY
           optional: true