diff --git a/PVE/Storage/ZFSDirPlugin.pm b/PVE/Storage/ZFSDirPlugin.pm
index e041ffc..08c29c4 100644
--- a/PVE/Storage/ZFSDirPlugin.pm
+++ b/PVE/Storage/ZFSDirPlugin.pm
@@ -120,6 +120,16 @@ sub zfs_parse_zvol_list {
     return $list;
 }
 
+sub parse_volname {
+    my ($class, $volname) = @_;
+
+    if ($volname =~ m/^(((base|vm)-(\d+)-\S+)\/)?((base)?(vm)?-(\d+)-\S+)$/) {
+	return ('images', $5, $8, $2, $4, $6);
+    }
+
+    die "unable to parse zfs volume name '$volname'\n";
+}
+
 # virtual zfs methods (subclass can overwrite them)
 
 sub zfs_request {
diff --git a/PVE/Storage/ZFSPlugin.pm b/PVE/Storage/ZFSPlugin.pm
index 7e21a6d..a5e3fb2 100644
--- a/PVE/Storage/ZFSPlugin.pm
+++ b/PVE/Storage/ZFSPlugin.pm
@@ -207,16 +207,6 @@ sub options {
 
 # Storage implementation
 
-sub parse_volname {
-    my ($class, $volname) = @_;
-
-    if ($volname =~ m/^(((base|vm)-(\d+)-\S+)\/)?((base)?(vm)?-(\d+)-\S+)$/) {
-	return ('images', $5, $8, $2, $4, $6);
-    }
-
-    die "unable to parse zfs volume name '$volname'\n";
-}
-
 sub path {
     my ($class, $scfg, $volname) = @_;