diff --git a/PVE/API2/Cluster/BackupInfo.pm b/PVE/API2/Cluster/BackupInfo.pm
index 4ef59ac..1ac5966 100644
--- a/PVE/API2/Cluster/BackupInfo.pm
+++ b/PVE/API2/Cluster/BackupInfo.pm
@@ -25,7 +25,12 @@ sub get_included_vmids {
 
     my $all_vmids = {};
     for my $job ($legacy_jobs->@*, grep { $_->{type} eq 'vzdump' } values $jobs->{ids}->%*) {
-        my $job_included_guests = PVE::VZDump::get_included_guests($job);
+        # a job referencing e.g. a deleted pool backs up nothing, but must not break the overview
+        my $job_included_guests = eval { PVE::VZDump::get_included_guests($job) };
+        if (my $err = $@) {
+            warn "ignoring backup job with invalid guest selection - $err";
+            next;
+        }
         $all_vmids->{$_} = 1 for map { $_->@* } values %{$job_included_guests};
     }
 
diff --git a/test/Makefile b/test/Makefile
index 2dfd20a..adc1f17 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -18,7 +18,7 @@ replication%.t: replication_test%.pl
 	./$<
 
 .PHONY: test-vzdump
-test-vzdump: test-vzdump-guest-included test-vzdump-new
+test-vzdump: test-vzdump-guest-included test-vzdump-new test-vzdump-backup-info
 
 .PHONY: test-vzdump-guest-included
 test-vzdump-guest-included:
@@ -28,6 +28,10 @@ test-vzdump-guest-included:
 test-vzdump-new:
 	./vzdump_new_test.pl
 
+.PHONY: test-vzdump-backup-info
+test-vzdump-backup-info:
+	./backup_info_test.pl
+
 .PHONY: test-osd
 test-osd:
 	./OSD_test.pl
diff --git a/test/backup_info_test.pl b/test/backup_info_test.pl
new file mode 100644
index 0000000..54aece2
--- /dev/null
+++ b/test/backup_info_test.pl
@@ -0,0 +1,71 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use lib '..';
+
+use Test::More;
+use Test::MockModule;
+
+use PVE::API2::Cluster::BackupInfo;
+
+my $vmlist = {
+    ids => {
+        100 => { type => 'qemu', node => 'node1' },
+        101 => { type => 'qemu', node => 'node1' },
+        102 => { type => 'lxc', node => 'node1' },
+    },
+};
+
+my $pools = {
+    testpool => [100],
+};
+
+my $jobs_cfg = {
+    ids => {
+        'backup-pool' => { type => 'vzdump', pool => 'testpool' },
+        'backup-vmid' => { type => 'vzdump', vmid => '101' },
+    },
+};
+
+my $cluster_module = Test::MockModule->new('PVE::Cluster');
+$cluster_module->mock(get_vmlist => sub { return $vmlist });
+
+my $api2tools_module = Test::MockModule->new('PVE::API2Tools');
+$api2tools_module->mock(
+    get_resource_pool_guest_members => sub {
+        my ($pool) = @_;
+        die "pool '$pool' does not exist\n" if !$pools->{$pool};
+        return $pools->{$pool};
+    },
+);
+
+my $backup_info_module = Test::MockModule->new('PVE::API2::Cluster::BackupInfo');
+$backup_info_module->mock(
+    cfs_read_file => sub {
+        my ($filename) = @_;
+        return { jobs => [] } if $filename eq 'vzdump.cron';
+        return $jobs_cfg if $filename eq 'jobs.cfg';
+        die "unexpected file '$filename'\n";
+    },
+);
+
+is_deeply(
+    PVE::API2::Cluster::BackupInfo::get_included_vmids(),
+    { 100 => 1, 101 => 1 },
+    'guests of all backup jobs are included',
+);
+
+$jobs_cfg->{ids}->{'backup-deleted-pool'} = { type => 'vzdump', pool => 'deletedpool' };
+
+my @warnings;
+my $included = eval {
+    local $SIG{__WARN__} = sub { push @warnings, $_[0] };
+    PVE::API2::Cluster::BackupInfo::get_included_vmids();
+};
+is($@, '', 'job referencing a deleted pool does not make the lookup fail');
+is_deeply($included, { 100 => 1, 101 => 1 }, 'guests of the other jobs are still included');
+like($warnings[0] // '', qr/pool 'deletedpool' does not exist/, 'broken job is warned about');
+
+done_testing();