diff --git a/lib/doc/Customization.lyx b/lib/doc/Customization.lyx
index abca3e188b..4ddc9be59d 100644
--- a/lib/doc/Customization.lyx
+++ b/lib/doc/Customization.lyx
@@ -1,5 +1,5 @@
 #LyX 2.0.0svn created this file. For more info see http://www.lyx.org/
-\lyxformat 381
+\lyxformat 387
 \begin_document
 \begin_header
 \textclass scrbook
@@ -126,6 +126,9 @@ End
 \output_changes false
 \html_math_output 0
 \html_be_strict true
+\html_math_img_scale 1
+\html_latex_start "<span class='latex'>"
+\html_latex_end "</span>"
 \end_header
 
 \begin_body