diff --git a/rug.cpp b/rug.cpp
index 497f8ca7..c136c3f6 100644
--- a/rug.cpp
+++ b/rug.cpp
@@ -1292,6 +1292,7 @@ EX void prepareTexture() {
   resetbuffer rb;
   
   dynamicval<eStereo> d(vid.stereo_mode, sOFF);
+  dynamicval<ld> dl(levellines, 0);
   calcparam_rug();
   models::configure();