diff --git a/libXext.spec b/libXext.spec
index 537285a..f3cbf8a 100644
--- a/libXext.spec
+++ b/libXext.spec
@@ -13,6 +13,7 @@ Source0: http://cgit.freedesktop.org/xorg/lib/libXext/snapshot/libXext-1.0.99.1.
 BuildRequires: xorg-x11-proto-devel >= 7.1-10
 BuildRequires: libX11-devel
 BuildRequires: libXau-devel
+BuildRequires: xorg-x11-util-macros
 BuildRequires: autoconf automake libtool pkgconfig
 
 %description