diff --git a/check_iostat b/check_iostat
index 8a11f77..69b86f0 100644
--- a/check_iostat
+++ b/check_iostat
@@ -33,7 +33,7 @@ sub VERSION_MESSAGE {
 sub HELP_MESSAGE {
     print "\n\tThis plugin shows the I/O usage of the specified disk, using the iostat external program.\n";
     print "\tIt prints three statistics: Transactions per second (tps), Kilobytes per second\n";
-    print "tread from the disk (KB_read/s) and and written to the disk (KB_written/s)\n\n";
+    print "read from the disk (KB_read/s) and and written to the disk (KB_written/s)\n\n";
     print "$progname:\n\t-d <disk>\t\tDevice to be checked (without the full path, eg. sda)\n";
     print "\t\t\t\t(also accepted are device mapper names)\n";
     print "\t-c <tps>,<read>,<wrtn>\tSets the CRITICAL level for tps, KB_read/s and KB_written/s, respectively\n";
@@ -121,7 +121,7 @@ while (<IOSTAT>) {
 	$seen_disk++;
 	next if $seen_disk < 2;
 	my (@stats) = split ('\s+', $_);
-        ($rps,$wps,$kbread,$kbwritten,$util) = @stats[1,2,5,6,13];
+        ($rps,$wps,$kbread,$kbwritten,$util) = @stats[3,4,5,6,13];
 	$tps = $rps + $wps;
 	last;
     }
diff --git a/monitoring-plugins-sar-perf.changes b/monitoring-plugins-sar-perf.changes
index 9a76db6..a78ae3d 100644
--- a/monitoring-plugins-sar-perf.changes
+++ b/monitoring-plugins-sar-perf.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Nov 14 17:27:19 CET 2017 - ro@suse.de
+
+- check_iostat: pass warning and critical level to perfdata
+- use iostat fields r/s and w/s for tps calculation 
+
 -------------------------------------------------------------------
 Mon Apr 24 12:33:08 CEST 2017 - ro@suse.de