X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/mfinanz.git/blobdiff_plain/89360aadb2c3e0854a2815e5d0ed8a9efd1c5889..de6f5bd0f8314cee1fa25f4e84a7d1d820b2a1d3:/SL/DB/Unit.pm

diff --git a/SL/DB/Unit.pm b/SL/DB/Unit.pm
index f5f1bc14c..508aa7477 100644
--- a/SL/DB/Unit.pm
+++ b/SL/DB/Unit.pm
@@ -57,7 +57,7 @@ sub convert_to {
   my $my_base_factor    = $self->base_factor       || 1;
   my $other_base_factor = $other_unit->base_factor || 1;
 
-  return $qty * $my_base_factor / $other_base_factor;
+  return ($qty // 0) * $my_base_factor / $other_base_factor;
 }
 
 sub is_time_based {