1diff --git a/CMakeLists.txt b/CMakeLists.txt
2index 5c4863c..f731775 100644
3--- a/CMakeLists.txt
4+++ b/CMakeLists.txt
5@@ -46,7 +46,6 @@ set_package_properties(LibXml2 PROPERTIES
6 )
7
8
9-find_package(DocBookXML4 "4.5")
10
11 set_package_properties(DocBookXML4 PROPERTIES
12 TYPE REQUIRED