diff --git a/PVE/Storage/LvmThinPlugin.pm b/PVE/Storage/LvmThinPlugin.pm
index 91f6089..5e404df 100644
--- a/PVE/Storage/LvmThinPlugin.pm
+++ b/PVE/Storage/LvmThinPlugin.pm
@@ -314,7 +314,7 @@ sub volume_has_feature {
 	snapshot => { current => 1 },
 	clone => { base => 1},
 	template => { current => 1},
-	copy => { base => 1, current => 1},
+	copy => { base => 1, current => 1, snap => 1},
     };
 
     my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) =