diff --git a/monitoring-plugins-sar-perf.changes b/monitoring-plugins-sar-perf.changes
index c301c3d..f6283ab 100644
--- a/monitoring-plugins-sar-perf.changes
+++ b/monitoring-plugins-sar-perf.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Apr 22 12:25:03 UTC 2021 - Lars Vogdt <lars@linux-schulserver.de>
+
+- include abstractions/bash in apparmor profile - otherwise 
+  the 'which iostat' command fails
+- reload the apparmor profile in postun to make the changes effective
+
 -------------------------------------------------------------------
 Tue Jul 28 14:03:05 CEST 2020 - ro@suse.de
 
diff --git a/monitoring-plugins-sar-perf.spec b/monitoring-plugins-sar-perf.spec
index f6b06b9..d549d98 100644
--- a/monitoring-plugins-sar-perf.spec
+++ b/monitoring-plugins-sar-perf.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package monitoring-plugins-sar-perf
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -66,6 +66,17 @@ install -D -m755 check_sar_perf.py %{buildroot}/%{nagios_plugindir}/check_sar_pe
 install -m755 %{SOURCE1} %{buildroot}/%{nagios_plugindir}/check_iostat
 install -Dm0644 %{SOURCE2} %{buildroot}/%{_sysconfdir}/apparmor.d/usr.lib.nagios.plugins.check_iostat
 
+%postun
+if [ "$YAST_IS_RUNNING" != "instsys" ]; then
+     if [ -x /sbin/apparmor_parser ]; then
+         if /usr/bin/systemctl is-active --quiet apparmor.service; then
+             /sbin/apparmor_parser -r -T -W  %{_sysconfdir}/apparmor.d/usr.lib.nagios.plugins.check_iostat &> /dev/null || :
+         fi
+     else
+         echo "Could not reload the Apparmor profile: /sbin/apparmor_parser is missing or not executable."
+     fi
+fi
+
 %clean
 rm -rf %{buildroot}
 
diff --git a/usr.lib.nagios.plugins.check_iostat b/usr.lib.nagios.plugins.check_iostat
index 6a6b18b..d603469 100644
--- a/usr.lib.nagios.plugins.check_iostat
+++ b/usr.lib.nagios.plugins.check_iostat
@@ -1,6 +1,7 @@
 #include <tunables/global>
 /usr/lib/nagios/plugins/check_iostat {
    #include <abstractions/base>
+   #include <abstractions/bash>
    #include <abstractions/consoles>
    #include <abstractions/perl>
    /usr/bin/iostat rix,