diff --git a/master/domain.c b/master/domain.c
index 0fed456eb3cadd95851a465ec445c0051b71e015..c17888b35e5ec37aa8bc3fc71fca53ce213d4b9d 100644
--- a/master/domain.c
+++ b/master/domain.c
@@ -74,7 +74,7 @@ int ec_domain_reg_field(ec_domain_t *domain, /**< Dom
         return -1;
     }
 
-    if (ec_slave_set_fmmu(slave, domain, sync)) {
+    if (ec_slave_prepare_fmmu(slave, domain, sync)) {
         EC_ERR("FMMU configuration failed.\n");
         kfree(field_reg);
         return -1;
@@ -86,7 +86,6 @@ int ec_domain_reg_field(ec_domain_t *domain, /**< Dom
     field_reg->data_ptr = data_ptr;
 
     list_add_tail(&field_reg->list, &domain->field_regs);
-
     return 0;
 }
 
diff --git a/master/slave.c b/master/slave.c
index 5ec7d69babc7935e58ffafff152b85addffd25e2..8af9c3f8cfd001429b69f797176a8700cee2edff 100644
--- a/master/slave.c
+++ b/master/slave.c
@@ -856,10 +856,10 @@ int ec_slave_state_change(ec_slave_t *slave,
    \return 0 bei Erfolg, sonst < 0
 */
 
-int ec_slave_set_fmmu(ec_slave_t *slave, /**< EtherCAT-Slave */
-                      const ec_domain_t *domain, /**< Domäne */
-                      const ec_sync_t *sync  /**< Sync-Manager */
-                      )
+int ec_slave_prepare_fmmu(ec_slave_t *slave, /**< EtherCAT-Slave */
+                          const ec_domain_t *domain, /**< Domäne */
+                          const ec_sync_t *sync  /**< Sync-Manager */
+                          )
 {
     unsigned int i;
 
diff --git a/master/slave.h b/master/slave.h
index dfc3fc677652b13143de04f36f966f7dd7d965c3..3c6d6bf59ea4cce860712d5cc2b9e107b5d3e9af 100644
--- a/master/slave.h
+++ b/master/slave.h
@@ -251,7 +251,8 @@ int ec_slave_sii_read16(ec_slave_t *, uint16_t, uint16_t *);
 int ec_slave_sii_read32(ec_slave_t *, uint16_t, uint32_t *);
 int ec_slave_sii_write16(ec_slave_t *, uint16_t, uint16_t);
 int ec_slave_state_change(ec_slave_t *, uint8_t);
-int ec_slave_set_fmmu(ec_slave_t *, const ec_domain_t *, const ec_sync_t *);
+int ec_slave_prepare_fmmu(ec_slave_t *, const ec_domain_t *,
+                          const ec_sync_t *);
 
 // CANopen over EtherCAT
 int ec_slave_fetch_sdo_list(ec_slave_t *);