diff --git a/vncviewer/DesktopWindow.cxx b/vncviewer/DesktopWindow.cxx
index 1693ab5..122a54d 100644
--- a/vncviewer/DesktopWindow.cxx
+++ b/vncviewer/DesktopWindow.cxx
@@ -105,7 +105,9 @@
 	case 2:
 	  w = geom_w;
 	  h = geom_h;
+	  break;
 	default:
+	  geom_x = geom_y = 0;
 	  vlog.error("Invalid geometry specified!");	
 	}
       }