--- loncom/xml/lontexconvert.pm	2019/02/15 17:52:54	1.112.2.8
+++ loncom/xml/lontexconvert.pm	2019/02/15 21:21:03	1.112.2.9
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # TeX Conversion Module
 #
-# $Id: lontexconvert.pm,v 1.112.2.8 2019/02/15 17:52:54 raeburn Exp $
+# $Id: lontexconvert.pm,v 1.112.2.9 2019/02/15 21:21:03 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -333,7 +333,7 @@ sub tex_engine {
     if ($domdefaults{'texengine'} ne '') {
         return $domdefaults{'texengine'};
     }
-    return 'tth';
+    return $Apache::lonnet::deftex;
 }
 
 sub init_math_support {