diff --git a/libtheora.spec b/libtheora.spec
index 55d683a..2db2f4a 100644
--- a/libtheora.spec
+++ b/libtheora.spec
@@ -13,6 +13,7 @@ BuildRequires: libogg-devel >= 2:1.1
 BuildRequires: libvorbis-devel
 BuildRequires: SDL-devel
 BuildRequires: libtool
+BuildRequires: doxygen
 
 %description
 Theora is Xiph.Org's first publicly released video codec, intended