diff --git a/server/modules/routing/binlog/blr_master.c b/server/modules/routing/binlog/blr_master.c
index d580acd4c..03614a368 100644
--- a/server/modules/routing/binlog/blr_master.c
+++ b/server/modules/routing/binlog/blr_master.c
@@ -1974,9 +1974,10 @@ blr_distribute_binlog_record(ROUTER_INSTANCE *router, REP_HEADER *hdr, uint8_t *
             {
                 /** Slave is using unexpected binlog file */
                 MXS_ERROR("Slave %s:%d server ID %d is using an unexpected binlog file '%s' with "
-                          "position %d. Master binlog file is '%s'.", slave->dcb->remote,
+                          "position %d. Master binlog file is '%s' at pos %lu.", slave->dcb->remote,
                           ntohs((slave->dcb->ipv4).sin_port), slave->serverid,
-                          slave->binlogfile, slave->binlog_pos, router->binlog_name);
+                          slave->binlogfile, slave->binlog_pos, router->binlog_name,
+                          (unsigned long)router->current_pos);
             }
 
             spinlock_release(&router->binlog_lock);