diff --git a/lib/doc/ru/UserGuide.lyx b/lib/doc/ru/UserGuide.lyx
index bdf09e5a6e..adade36170 100644
--- a/lib/doc/ru/UserGuide.lyx
+++ b/lib/doc/ru/UserGuide.lyx
@@ -81,7 +81,7 @@ logicalmkup
 \use_microtype true
 \use_dash_ligatures true
 \graphics default
-\default_output_format default
+\default_output_format pdf2
 \output_sync 0
 \bibtex_command bibtex
 \index_command makeindex