diff --git a/PVE/Storage/ZFSPoolPlugin.pm b/PVE/Storage/ZFSPoolPlugin.pm
index 07540b3..2f0a80a 100644
--- a/PVE/Storage/ZFSPoolPlugin.pm
+++ b/PVE/Storage/ZFSPoolPlugin.pm
@@ -549,15 +549,14 @@ sub activate_volume {
 
     return 1 if defined($snapname);
 
-    my (undef, undef, undef, undef, undef, undef, $format) = $class->parse_volname($volname);
+    my (undef, $dataset, undef, undef, undef, undef, $format) = $class->parse_volname($volname);
 
     if ($format eq 'raw') {
 	$class->zfs_wait_for_zvol_link($scfg, $volname);
     } elsif ($format eq 'subvol') {
-	my ($path, undef, undef) = $class->path($scfg, $volname, $storeid);
-	my $mounted = $class->zfs_get_properties($scfg, 'mounted', "$path");
+	my $mounted = $class->zfs_get_properties($scfg, 'mounted', "$scfg->{pool}/$dataset");
 	if ($mounted !~ m/^yes$/) {
-	    $class->zfs_request($scfg, undef, 'mount', "$path");
+	    $class->zfs_request($scfg, undef, 'mount', "$scfg->{pool}/$dataset");
 	}
     }