--- loncom/xml/lontexconvert.pm	2018/04/23 19:33:17	1.112.2.7
+++ 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 1.112.2.7 2018/04/23 19:33:17 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
 #
@@ -328,7 +328,12 @@ sub tex_engine {
         }
 	return $env{'environment.texengine'};
     }
-    return 'tth';
+    my $dom = $env{'request.role.domain'} || $env{'user.domain'};
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
+    if ($domdefaults{'texengine'} ne '') {
+        return $domdefaults{'texengine'};
+    }
+    return $Apache::lonnet::deftex;
 }
 
 sub init_math_support {