diff --git a/doxygen.spec b/doxygen.spec
index 7aa4682..034b05d 100644
--- a/doxygen.spec
+++ b/doxygen.spec
@@ -25,6 +25,7 @@ BuildRequires: tex(tocloft.sty)
 BuildRequires: tex(xtab.sty)
 BuildRequires: tex(import.sty)
 BuildRequires: tex(tabu.sty)
+BuildRequires: tex(appendix.sty)
 BuildRequires: /usr/bin/epstopdf
 BuildRequires: texlive-epstopdf
 BuildRequires: ghostscript