diff --git a/plugins/rcpt_mysql b/plugins/rcpt_mysql
index e6bd9ef..912ac81 100644
--- a/plugins/rcpt_mysql
+++ b/plugins/rcpt_mysql
@@ -38,7 +38,7 @@ sub createDSN
     my $dsn = "DBI:MariaDB:database=" . $self->{database} . ";host=" . $self->{host} . ";port=" . $self->{port};
     $self->{dsn} = $dsn;
 
-    $self->log(LOGDEBUG, "created DSN " . $self->{DSN});
+    $self->log(LOGDEBUG, "created DSN " . $self->{dsn});
 }
 
 sub createQuery