diff --git a/cmd/tailscale/cli/up.go b/cmd/tailscale/cli/up.go
index 97e6ef791..83efa7fdd 100644
--- a/cmd/tailscale/cli/up.go
+++ b/cmd/tailscale/cli/up.go
@@ -889,7 +889,7 @@ func init() {
 	addPrefFlagMapping("advertise-connector", "AppConnector")
 	addPrefFlagMapping("report-posture", "PostureChecking")
 	addPrefFlagMapping("relay-server-port", "RelayServerPort")
-	addPrefFlagMapping("endpoint", "StaticEndpoints")
+	addPrefFlagMapping("static-endpoint", "StaticEndpoints")
 }
 
 func addPrefFlagMapping(flagName string, prefNames ...string) {