diff --git a/master/domain.h b/master/domain.h
index 5ac9c9f3..1170217f 100755
--- a/master/domain.h
+++ b/master/domain.h
@@ -77,8 +77,6 @@ struct ec_domain
     const ec_slave_config_t *sc_in_work; /**< slave_config which is actively
         being registered in this domain
         (i.e. ecrt_slave_config_reg_pdo_entry() ) */
-    unsigned sc_in_work_start_offset; /**< Starting domain offset of slave
-        config in work */
 };
 
 /*****************************************************************************/