diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index cb6e9e5..e8b3a4c 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -12,6 +12,7 @@ Mon Nov  7 20:23:30 UTC 2011 - wr@rosenauer.org
     Code execution via NoWaiverWrapper
 - rebased patches
 - update enigmail to 1.3.3
+- update icon cache after install/removal (bnc#726758)
 
 -------------------------------------------------------------------
 Fri Sep 30 09:59:15 UTC 2011 - wr@rosenauer.org
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index b1629c6..1e4fda9 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -413,6 +413,9 @@ exit 0
 
 %post
 %progdir/add-plugins.sh > /dev/null 2>&1
+%if %suse_version > 1130
+%icon_theme_cache_post
+%endif
 # remove enigmail on updates
 if [ -e %progdir/extensions/\{847b3a00-7ab1-11d4-8f02-006008948af5\} ]; then
   rm -rf %progdir/extensions/\{847b3a00-7ab1-11d4-8f02-006008948af5\}
@@ -431,6 +434,12 @@ if [ "$1" = "0" ]; then # deinstallation
 fi
 exit 0
 
+%postun
+%if %suse_version > 1130
+%icon_theme_cache_postun
+%endif
+exit 0
+
 %files
 %defattr(-,root,root)
 %attr(755,root,root) %{progdir}/%{progname}.sh