diff --git a/features/nanostack/mbed-mesh-api/source/NanostackEMACInterface.cpp b/features/nanostack/mbed-mesh-api/source/NanostackEMACInterface.cpp
index b09ccfc00f..b47546a69e 100644
--- a/features/nanostack/mbed-mesh-api/source/NanostackEMACInterface.cpp
+++ b/features/nanostack/mbed-mesh-api/source/NanostackEMACInterface.cpp
@@ -178,7 +178,7 @@ void EMACPhy::set_mac_address(uint8_t *mac)
     memcpy(mac_addr, mac, sizeof mac_addr);
 }
 
-nsapi_error_t Nanostack::add_ethernet_interface_ns(EMAC &emac, bool default_if, Nanostack::EthernetInterface **interface_out, const uint8_t *mac_addr)
+nsapi_error_t Nanostack::add_ethernet_interface(EMAC &emac, bool default_if, OnboardNetworkStack::Interface **interface_out, const uint8_t *mac_addr)
 {
     if (single_phy) {
         return NSAPI_ERROR_DEVICE_ERROR;
@@ -209,15 +209,6 @@ nsapi_error_t Nanostack::add_ethernet_interface_ns(EMAC &emac, bool default_if,
     *interface_out = interface;
 
     return NSAPI_ERROR_OK;
-
-}
-
-nsapi_error_t Nanostack::add_ethernet_interface(EMAC &emac, bool default_if, OnboardNetworkStack::Interface **interface_out, const uint8_t *mac_addr)
-{
-    Nanostack::EthernetInterface *interface;
-    nsapi_error_t err = add_ethernet_interface_ns(emac, default_if, &interface, mac_addr);
-    *interface_out = interface;
-    return err;
 }
 
 nsapi_error_t Nanostack::add_ethernet_interface(EMAC &emac, bool default_if, OnboardNetworkStack::Interface **interface_out)
diff --git a/features/nanostack/nanostack-interface/Nanostack.h b/features/nanostack/nanostack-interface/Nanostack.h
index 369ac5c38c..e25706d53d 100644
--- a/features/nanostack/nanostack-interface/Nanostack.h
+++ b/features/nanostack/nanostack-interface/Nanostack.h
@@ -43,9 +43,6 @@ public:
     virtual nsapi_error_t add_ethernet_interface(EMAC &emac, bool default_if, OnboardNetworkStack::Interface **interface_out);
     virtual nsapi_error_t add_ethernet_interface(EMAC &emac, bool default_if, OnboardNetworkStack::Interface **interface_out, const uint8_t *mac_addr);
 
-    /* Local variant */
-    nsapi_error_t add_ethernet_interface_ns(EMAC &emac, bool default_if, Nanostack::EthernetInterface **interface_out, const uint8_t *mac_addr = NULL);
-
     virtual nsapi_error_t add_ppp_interface(PPP &ppp, bool default_if, OnboardNetworkStack::Interface **interface_out);
 
     /* Local variant with stronger typing and manual address specification */