diff --git a/cmd/tsconnect/wasm/wasm_js.go b/cmd/tsconnect/wasm/wasm_js.go
index 8b5b1a876..38f44a9bc 100644
--- a/cmd/tsconnect/wasm/wasm_js.go
+++ b/cmd/tsconnect/wasm/wasm_js.go
@@ -388,7 +388,7 @@ func (i *jsIPN) run(jsCallbacks js.Value) {
 				log.Printf("Could not generate JSON netmap: %v", err)
 			}
 		}
-		if n.Prefs.Valid() {
+		if n.Prefs != nil && n.Prefs.Valid() {
 			jsCallbacks.Call("notifyExitNode", string(n.Prefs.ExitNodeID()))
 		}
 		if n.BrowseToURL != nil {