diff --git a/udisks2.changes b/udisks2.changes
index 450c508..6835793 100644
--- a/udisks2.changes
+++ b/udisks2.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Nov 24 04:06:19 UTC 2013 - crrodriguez@opensuse.org
+
+- define _udevrulesdir only if not already defined
+- run %udev_rules_update, if defined. 
+
 -------------------------------------------------------------------
 Wed Aug 21 07:04:30 UTC 2013 - dimstar@opensuse.org
 
diff --git a/udisks2.spec b/udisks2.spec
index 82ec63b..a2d4df3 100644
--- a/udisks2.spec
+++ b/udisks2.spec
@@ -16,7 +16,7 @@
 #
 
 
-%define _udevrulesdir %(pkg-config --variable=udevdir udev)/rules.d
+%{!?_udevrulesdir: %global _udevrulesdir %(pkg-config --variable=udevdir udev)/rules.d}
 
 Name:           udisks2
 %define _name   udisks
@@ -109,6 +109,7 @@ find %{buildroot}%{_libdir} -name '*.la' -type f -delete -print
 %service_add_pre udisks2.service
 
 %post
+%{?udev_rules_update:%udev_rules_update}
 %service_add_post udisks2.service
 
 %preun