diff --git a/src/genworld.cpp b/src/genworld.cpp
--- a/src/genworld.cpp
+++ b/src/genworld.cpp
@@ -331,7 +331,7 @@ void GenerateWorld(GenWorldMode mode, ui
 		_gw.thread = NULL;
 	}
 
-	if (!_video_driver->HasGUI() || !ThreadObject::New(&_GenerateWorld, NULL, &_gw.thread)) {
+	if (!VideoDriver::GetInstance()->HasGUI() || !ThreadObject::New(&_GenerateWorld, NULL, &_gw.thread)) {
 		DEBUG(misc, 1, "Cannot create genworld thread, reverting to single-threaded mode");
 		_gw.threaded = false;
 		_modal_progress_work_mutex->EndCritical();