diff --git a/PVE/API2/Disks/ZFS.pm b/PVE/API2/Disks/ZFS.pm
index a4d4aa2..1b904c6 100644
--- a/PVE/API2/Disks/ZFS.pm
+++ b/PVE/API2/Disks/ZFS.pm
@@ -19,9 +19,7 @@ my $ZPOOL = '/sbin/zpool';
 my $ZFS = '/sbin/zfs';
 
 sub get_pool_data {
-    if (!-f $ZPOOL) {
-	die "zfsutils-linux not installed\n";
-    }
+    die "zfsutils-linux not installed\n" if ! -f $ZPOOL;
 
     my $propnames = [qw(name size alloc free frag dedup health)];
     my $numbers = {
@@ -32,24 +30,21 @@ sub get_pool_data {
 	dedup => 1,
     };
 
-    my $cmd = [$ZPOOL,'list', '-HpPLo', join(',', @$propnames)];
-
     my $pools = [];
-
-    run_command($cmd, outfunc => sub {
+    run_command([$ZPOOL, 'list', '-HpPLo', join(',', @$propnames)], outfunc => sub {
 	my ($line) = @_;
 
-	    my @props = split('\s+', trim($line));
-	    my $pool = {};
-	    for (my $i = 0; $i < scalar(@$propnames); $i++) {
-		if ($numbers->{$propnames->[$i]}) {
-		    $pool->{$propnames->[$i]} = $props[$i] + 0;
-		} else {
-		    $pool->{$propnames->[$i]} = $props[$i];
-		}
+	my @props = split('\s+', trim($line));
+	my $pool = {};
+	for (my $i = 0; $i < scalar(@$propnames); $i++) {
+	    if ($numbers->{$propnames->[$i]}) {
+		$pool->{$propnames->[$i]} = $props[$i] + 0;
+	    } else {
+		$pool->{$propnames->[$i]} = $props[$i];
 	    }
+	}
 
-	    push @$pools, $pool;
+	push @$pools, $pool;
     });
 
     return $pools;