1 files changed, 1 insertions, 0 deletions
diff --git a/globals.pl b/globals.pl
index 6e0ebd774..ec7d39693 100644
--- a/globals.pl
+++ b/globals.pl
@@ -595,6 +595,7 @@ sub ValidatePassword {
 
 sub DBID_to_name {
     my ($id) = (@_);
+    return "__UNKNOWN__" if !defined $id;
     # $id should always be a positive integer
     if ($id =~ m/^([1-9][0-9]*)$/) {
         $id = $1;