diff --git a/libcmis.spec b/libcmis.spec
index b16fe10..d8db88e 100644
--- a/libcmis.spec
+++ b/libcmis.spec
@@ -9,6 +9,7 @@ URL: http://sourceforge.net/projects/libcmis/
 Source: http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
 
 BuildRequires: boost-devel
+BuildRequires: docbook2X
 BuildRequires: libcurl-devel
 BuildRequires: libxml2-devel