diff --git a/preferences.xml b/preferences.xml
index da8416c..3b701c3 100644
--- a/preferences.xml
+++ b/preferences.xml
@@ -58,6 +58,14 @@ Started September 2000 by David Megginson, david@megginson.com
                        <season type="string" preserve="y">summer</season>
                </startup>
                <rendering>
+                       <terrain>
+                               <simplifier>
+                                       <enabled type="bool">false</enabled>
+                                       <ratio type="double">0.001</ratio>
+                                       <max-error type="double">1000.0</max-error>
+                                       <max-length type="double">1000.0</max-length>
+                               </simplifier>
+                       </terrain>
                        <materials-file>Materials/regions/materials.xml</materials-file>
                        <rembrandt>
                                <enabled type="bool">false</enabled>