diff --git a/rpm_spec/core-dom0.spec b/rpm_spec/core-dom0.spec
index 124b14fa..9256125b 100644
--- a/rpm_spec/core-dom0.spec
+++ b/rpm_spec/core-dom0.spec
@@ -37,7 +37,7 @@ Vendor:		Invisible Things Lab
 License:	GPL
 URL:		http://www.qubes-os.org
 Requires:	python, xen-runtime, pciutils, python-inotify, python-daemon, kernel-qubes-dom0
-Requires:   qubes-gui-dom0 >= 1.1.13
+Conflicts:   qubes-gui-dom0 < 1.1.13
 Requires:       NetworkManager >= 0.8.1-1
 %define _builddir %(pwd)/dom0