diff --git a/plugins/disk/raid-mismatch-count b/plugins/disk/raid-mismatch-count
index 9b84b50f..b53dc9c8 100755
--- a/plugins/disk/raid-mismatch-count
+++ b/plugins/disk/raid-mismatch-count
@@ -24,7 +24,7 @@
 # #%# capabilities=autoconf
 
 
-targets=`ls /sys/devices/virtual/block/*/md/mismatch_cnt | cut -d/ -f6`
+targets=`ls /sys/devices/virtual/block/*/md/mismatch_cnt 2> /dev/null | cut -d/ -f6`
 returnval=$?
 
 if [ "x$1" = "xautoconf" ]; then
@@ -55,5 +55,5 @@ __EOF__
 fi
 
 for target in $targets; do
-	echo $target.value $(cat /sys/devices/virtual/block/$target/md/sync_completed)
+	echo $target.value $(cat /sys/devices/virtual/block/$target/md/mismatch_cnt)
 done