diff --git a/PVE/Storage/CephFSPlugin.pm b/PVE/Storage/CephFSPlugin.pm
index 79106cc..db0c2f6 100644
--- a/PVE/Storage/CephFSPlugin.pm
+++ b/PVE/Storage/CephFSPlugin.pm
@@ -170,8 +170,7 @@ sub check_config {
 sub on_add_hook {
     my ($class, $storeid, $scfg, %param) = @_;
 
-    my $secret = $param{keyring} if defined $param{keyring} // undef;
-    PVE::CephConfig::ceph_create_keyfile($scfg->{type}, $storeid, $secret);
+    PVE::CephConfig::ceph_create_keyfile($scfg->{type}, $storeid, $param{keyring});
 
     return;
 }