diff --git a/xorg-x11-proto-devel.spec b/xorg-x11-proto-devel.spec
index 40538f0..47d768e 100644
--- a/xorg-x11-proto-devel.spec
+++ b/xorg-x11-proto-devel.spec
@@ -6,7 +6,7 @@
 Summary: X.Org X11 Protocol headers
 Name: xorg-x11-proto-devel
 Version: 7.0
-Release: 4
+Release: 5
 License: The Open Group License
 Group: Development/System
 URL: http://www.x.org
@@ -63,6 +63,8 @@ Obsoletes: XFree86-devel, xorg-x11-devel
 # modular X.Org.  Bug #173384.
 Requires(pre): xorg-x11-filesystem >= 0.99.2-3
 
+Requires: mesa-libGL-devel
+
 %description
 X.Org X11 Protocol headers
 
@@ -274,6 +276,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/pkgconfig/xproxymngproto.pc
 
 %changelog
+* Wed Feb 22 2006 Jeremy Katz <katzj@redhat.com> - 7.0-5
+- require mesa-libGL-devel since it's needed by some of the headers
+
 * Sun Feb 19 2006 Ray Strode <rstrode@redhat.com> 7.0-4
 - Add back part of glproto-texture-from-drawable patch that didn't
   get integrated for some reason