diff --git a/libevent.spec b/libevent.spec
index 55eaa76..b179c9d 100644
--- a/libevent.spec
+++ b/libevent.spec
@@ -9,6 +9,8 @@ URL:            http://monkey.org/~provos/libevent/
 Source0:        http://monkey.org/~provos/libevent-%{version}-stable.tar.gz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
+BuildRequires: doxygen
+
 Patch00: libevent-1.4.12-stable-configure.patch
 Patch01: libevent-1.4.12-stable-epoll.patch