diff --git a/main.go b/main.go
index f04fd66..0f24293 100644
--- a/main.go
+++ b/main.go
@@ -249,10 +249,11 @@ func runServer(sockPath string) {
 		}
 		var err error
 		elevateBroker, err = elevate.NewBroker(elevate.BrokerConfig{
-			SocketPath: elevateSocket,
-			PolicyPath: policyPath,
-			Notify:     notifyFn,
-			Logf:       func(f string, a ...any) { fmt.Printf(f+"\n", a...) },
+			SocketPath:   elevateSocket,
+			PolicyPath:   policyPath,
+			Notify:       notifyFn,
+			Logf:         func(f string, a ...any) { fmt.Printf(f+"\n", a...) },
+			SessionValid: func(id string) bool { return mgr.Session(id) != nil },
 		})
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "warning: %v\n", err)