diff --git a/PVE/Storage/ZFSPoolPlugin.pm b/PVE/Storage/ZFSPoolPlugin.pm
index 4f8df5e..6ac05b4 100644
--- a/PVE/Storage/ZFSPoolPlugin.pm
+++ b/PVE/Storage/ZFSPoolPlugin.pm
@@ -554,9 +554,10 @@ sub activate_volume {
     if ($format eq 'raw') {
 	$class->zfs_wait_for_zvol_link($scfg, $volname);
     } elsif ($format eq 'subvol') {
-	my $mounted = $class->zfs_get_properties($scfg, 'mounted', "$scfg->{pool}/$volname");
+	my ($path, undef, undef) = $class->path($scfg, $volname, $storeid);
+	my $mounted = $class->zfs_get_properties($scfg, 'mounted', "$path");
 	if ($mounted !~ m/^yes$/) {
-	    $class->zfs_request($scfg, undef, 'mount', "$scfg->{pool}/$volname");
+	    $class->zfs_request($scfg, undef, 'mount', "$path");
 	}
     }