diff --git a/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm b/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
index c8a5710c0..6a3cd9203 100644
--- a/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
+++ b/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
@@ -112,8 +112,8 @@ sub Execute {
     $sql =~ s/zmSystemLoad/$load/g;
   }
 
-  my $sth = $$self{dbh}->prepare_cached( $sql )
-    or Fatal( "Can't prepare '$sql': ".$$self{dbh}->errstr() );
+  my $sth = $ZoneMinder::Database::dbh->prepare_cached( $sql )
+    or Fatal( "Can't prepare '$sql': ".$ZoneMinder::Database::dbh->errstr() );
   my $res = $sth->execute();
   if ( !$res ) {
     Error( "Can't execute filter '$sql', ignoring: ".$sth->errstr() );