diff --git a/src/warden-client/doc/example-receiver.pl.txt b/src/warden-client/doc/example-receiver.pl.txt
index 55076103b0b847098d5e26450cfffb22e97d149a..ecfefc249a3daf2991f1f5b5ed76075e1ddeb489 100755
--- a/src/warden-client/doc/example-receiver.pl.txt
+++ b/src/warden-client/doc/example-receiver.pl.txt
@@ -38,7 +38,7 @@ print "+------------------------------------------------------------------------
 while (my @new_events = WardenClientReceive::getNewEvents($warden_path, $requested_type)) {
   foreach my $event_ref (@new_events) {
     my @event = @$event_ref;
-    print "| " . join(' | ', @event) . " |" . "\n";
+    print "| " . join(' | ', map { $_ || '' } @event) . " |" . "\n";
   }
 print "+------------------------------------------------------------------------------------------------------------------------------------------+\n";
 }