diff --git a/PVE/API2/Qemu/Agent.pm b/PVE/API2/Qemu/Agent.pm
index fbc8105b..5141b4e2 100644
--- a/PVE/API2/Qemu/Agent.pm
+++ b/PVE/API2/Qemu/Agent.pm
@@ -174,7 +174,7 @@ sub register_command {
 
 	    die "No Qemu Guest Agent\n" if !defined($conf->{agent});
 	    die "VM $vmid is not running\n" if !PVE::QemuServer::check_running($vmid);
-	    die "Qemu Guest Agent is not running\n" if !PVE::QemuServer::qga_check_running($vmid);
+	    die "Qemu Guest Agent is not running\n" if !PVE::QemuServer::qga_check_running($vmid, 1);
 
 	    my $cmd = $param->{command} // $command;
 	    my $res = PVE::QemuServer::vm_mon_cmd($vmid, "guest-$cmd");
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 9c4ac94c..00e16694 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -6095,11 +6095,11 @@ sub do_snapshots_with_qemu {
 }
 
 sub qga_check_running {
-    my ($vmid) = @_;
+    my ($vmid, $nowarn) = @_;
 
     eval { vm_mon_cmd($vmid, "guest-ping", timeout => 3); };
     if ($@) {
-	warn "Qemu Guest Agent is not running - $@";
+	warn "Qemu Guest Agent is not running - $@" if !$nowarn;
 	return 0;
     }
     return 1;