diff --git a/cogl.spec b/cogl.spec
index ca1eb90..863cc6e 100644
--- a/cogl.spec
+++ b/cogl.spec
@@ -13,6 +13,7 @@ BuildRequires: gdk-pixbuf2-devel
 BuildRequires: glib2-devel
 BuildRequires: gobject-introspection-devel
 BuildRequires: gtk-doc
+BuildRequires: libXrandr-devel
 BuildRequires: libXcomposite-devel
 BuildRequires: libXdamage-devel
 BuildRequires: libXext-devel