fix mostly-harmless warning

diff --git a/FS/FS/part_event/Condition.pm b/FS/FS/part_event/Condition.pm
index fc69f1d..60697c1 100644 (file)
--- a/FS/FS/part_event/Condition.pm
+++ b/FS/FS/part_event/Condition.pm
@@ -524,7 +524,7 @@ comparison to other integers is type-correct.
 sub condition_sql_option_integer {
   my ($class, $option, $driver_name) = @_;
 
-  my $integer = ($driver_name =~ /^mysql/) ? 'UNSIGNED INTEGER' : 'INTEGER';
+  my $integer = (driver_name() =~ /^mysql/) ? 'UNSIGNED INTEGER' : 'INTEGER';
 
   'CAST(
          COALESCE('. $class->condition_sql_option($option).