diff --git a/master/slave.c b/master/slave.c
index 30739f14..7d6050d4 100644
--- a/master/slave.c
+++ b/master/slave.c
@@ -1199,28 +1199,6 @@ ec_sync_t *ec_slave_get_pdo_sync(
 
 /*****************************************************************************/
 
-/**
-   \return 0 in case of success, else < 0
-*/
-
-int ec_slave_validate(const ec_slave_t *slave, /**< EtherCAT slave */
-                      uint32_t vendor_id, /**< vendor ID */
-                      uint32_t product_code /**< product code */
-                      )
-{
-    if (vendor_id != slave->sii.vendor_id ||
-        product_code != slave->sii.product_code) {
-        EC_ERR("Invalid slave type at position %u:\n", slave->ring_position);
-        EC_ERR("  Requested: 0x%08X 0x%08X\n", vendor_id, product_code);
-        EC_ERR("      Found: 0x%08X 0x%08X\n",
-                slave->sii.vendor_id, slave->sii.product_code);
-        return -1;
-    }
-    return 0;
-}
-
-/*****************************************************************************/
-
 /**
    Counts the total number of Sdos and entries in the dictionary.
 */
diff --git a/master/slave.h b/master/slave.h
index b07980e7..50b44be6 100644
--- a/master/slave.h
+++ b/master/slave.h
@@ -220,7 +220,6 @@ int ec_slave_fetch_sii_pdos(ec_slave_t *, const uint8_t *, size_t,
 
 // misc.
 ec_sync_t *ec_slave_get_pdo_sync(ec_slave_t *, ec_direction_t); 
-int ec_slave_validate(const ec_slave_t *, uint32_t, uint32_t);
 void ec_slave_sdo_dict_info(const ec_slave_t *,
         unsigned int *, unsigned int *);
 ec_sdo_t *ec_slave_get_sdo(ec_slave_t *, uint16_t);