diff --git a/PVE/API2/Storage/Content.pm b/PVE/API2/Storage/Content.pm
index 699823b..f159600 100644
--- a/PVE/API2/Storage/Content.pm
+++ b/PVE/API2/Storage/Content.pm
@@ -219,7 +219,7 @@ __PACKAGE__->register_method ({
 
 	my $cfg = PVE::Storage::config();
 
-	PVE::Storage::check_volume_access($rpcenv, $rpcenv->$authuser, $cfg, undef, $volid);
+	PVE::Storage::check_volume_access($rpcenv, $authuser, $cfg, undef, $volid);
 
 	my $path = PVE::Storage::path($cfg, $volid);
 	my ($size, $format, $used, $parent) =  PVE::Storage::file_size_info($path);