diff --git a/test/run_qemu_restore_config_tests.pl b/test/run_qemu_restore_config_tests.pl
index e5d9f2ab..d8c0f375 100755
--- a/test/run_qemu_restore_config_tests.pl
+++ b/test/run_qemu_restore_config_tests.pl
@@ -5,6 +5,7 @@ use warnings;
 
 use lib qw(..);
 
+use Test::MockModule;
 use Test::More;
 
 use File::Basename;
@@ -15,6 +16,13 @@ use PVE::Tools qw(dir_glob_foreach file_get_contents);
 my $INPUT_DIR = './restore-config-input';
 my $EXPECTED_DIR = './restore-config-expected';
 
+my $pve_cluster_module = Test::MockModule->new('PVE::Cluster');
+$pve_cluster_module->mock(
+    cfs_read_file => sub {
+	return {};
+    },
+);
+
 # NOTE update when you add/remove tests
 plan tests => 4;