diff --git a/plugins/dynamix/include/FileSystemStatus.php b/plugins/dynamix/include/FileSystemStatus.php
index 7cda3d7c2..d4ebc21ea 100644
--- a/plugins/dynamix/include/FileSystemStatus.php
+++ b/plugins/dynamix/include/FileSystemStatus.php
@@ -22,7 +22,7 @@ function zfs($data) {return "zfs-".strtok($data,' ');}
 switch ($cmd) {
 case 'status':
   exec("ps -C btrfs -o cmd=|awk '/$path\$/{print $2}'",$btrfs);
-  exec("/usr/sbin/zpool status $path|grep -Pom1 '(scrub|resilver) in progress'",$zfs);
+  exec("/usr/sbin/zpool status $path|grep -Po '(scrub|resilver) in progress'",$zfs);
   echo implode(',',array_merge(array_map('btrfs',$btrfs),array_map('zfs',$zfs)));
   break;
 case 'btrfs-balance':