diff --git a/lib/layouts/svmono.layout b/lib/layouts/svmono.layout
index 47067aa0cf..7f3faa0bda 100644
--- a/lib/layouts/svmono.layout
+++ b/lib/layouts/svmono.layout
@@ -11,6 +11,8 @@
 Format 48
 Input svcommon.inc
 
+TocDepth                2
+
 ClassOptions
 	FontSize	10
 End