diff --git a/main/main.cpp b/main/main.cpp
index 3dff9d89bdb..3d72e90f2c9 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -1881,7 +1881,9 @@ bool Main::iteration() {
 
 	uint64_t idle_begin = OS::get_singleton()->get_ticks_usec();
 
-	OS::get_singleton()->get_main_loop()->idle(step * time_scale);
+	if (OS::get_singleton()->get_main_loop()->idle(step * time_scale)) {
+		exit = true;
+	}
 	message_queue->flush();
 
 	VisualServer::get_singleton()->sync(); //sync if still drawing from previous frames.