diff --git a/source/FreeRTOS_DHCPv6.c b/source/FreeRTOS_DHCPv6.c
index fa7d137f53..8aade90030 100644
--- a/source/FreeRTOS_DHCPv6.c
+++ b/source/FreeRTOS_DHCPv6.c
@@ -871,7 +871,7 @@ static void prvCreateDHCPv6Socket( NetworkEndPoint_t * pxEndPoint )
     }
     else if( xDHCPv6Socket == NULL ) /* Create the socket, if it has not already been created. */
     {
-        xDHCPv6Socket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
+        xDHCPv6Socket = FreeRTOS_socket( FREERTOS_AF_INET6, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP );
         configASSERT( xSocketValid( xDHCPv6Socket ) == pdTRUE );
 
         /* Ensure the Rx and Tx timeouts are zero as the DHCP executes in the
diff --git a/test/unit-test/FreeRTOS_DHCPv6/FreeRTOS_DHCPv6_utest.c b/test/unit-test/FreeRTOS_DHCPv6/FreeRTOS_DHCPv6_utest.c
index 4f0cb9d263..89238129ff 100644
--- a/test/unit-test/FreeRTOS_DHCPv6/FreeRTOS_DHCPv6_utest.c
+++ b/test/unit-test/FreeRTOS_DHCPv6/FreeRTOS_DHCPv6_utest.c
@@ -1377,7 +1377,7 @@ void test_vDHCPv6Process_ResetFromInit()
     xEndPoint.xDHCPData.eDHCPState = eInitialWait;
     xEndPoint.xDHCPData.eExpectedState = eInitialWait;
 
-    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
+    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET6, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
     xSocketValid_ExpectAndReturn( &xLocalDHCPv6Socket, pdTRUE );
     prvSetCheckerAndReturn_FreeRTOS_setsockopt( &xLocalDHCPv6Socket, sizeof( TickType_t ) );
     FreeRTOS_setsockopt_Stub( xStubFreeRTOS_setsockopt );
@@ -1413,7 +1413,7 @@ void test_vDHCPv6Process_ResetFromLease()
     memcpy( xEndPoint.ipv6_settings.xIPAddress.ucBytes, xIPAddress.ucBytes, ipSIZE_OF_IPv6_ADDRESS );
     xEndPoint.pxDHCPMessage = &xDHCPMessage;
 
-    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
+    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET6, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
     xSocketValid_ExpectAndReturn( &xLocalDHCPv6Socket, pdTRUE );
     prvSetCheckerAndReturn_FreeRTOS_setsockopt( &xLocalDHCPv6Socket, sizeof( TickType_t ) );
     FreeRTOS_setsockopt_Stub( xStubFreeRTOS_setsockopt );
@@ -1449,7 +1449,7 @@ void test_vDHCPv6Process_ResetDifferentState()
     memcpy( xEndPoint.ipv6_settings.xIPAddress.ucBytes, xIPAddress.ucBytes, ipSIZE_OF_IPv6_ADDRESS );
     xEndPoint.pxDHCPMessage = &xDHCPMessage;
 
-    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
+    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET6, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
     xSocketValid_ExpectAndReturn( &xLocalDHCPv6Socket, pdTRUE );
     prvSetCheckerAndReturn_FreeRTOS_setsockopt( &xLocalDHCPv6Socket, sizeof( TickType_t ) );
     FreeRTOS_setsockopt_Stub( xStubFreeRTOS_setsockopt );
@@ -3207,7 +3207,7 @@ void test_vDHCPv6Process_prvCloseDHCPv6Socket_MultipleEndpointsCloseSockets()
 
     pxNetworkEndPoints = &xEndPoint[ 0 ];
 
-    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket[ 0 ] );
+    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET6, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket[ 0 ] );
     xSocketValid_ExpectAndReturn( &xLocalDHCPv6Socket[ 0 ], pdTRUE );
     prvSetCheckerAndReturn_FreeRTOS_setsockopt( &xLocalDHCPv6Socket[ 0 ], sizeof( TickType_t ) );
     FreeRTOS_setsockopt_Stub( xStubFreeRTOS_setsockopt );
@@ -3320,7 +3320,7 @@ void test_vDHCPv6Process_prvCreateDHCPv6Socket_CreateSocketFail()
 
     pxNetworkEndPoints = &xEndPoint;
 
-    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
+    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET6, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
     xSocketValid_ExpectAndReturn( &xLocalDHCPv6Socket, pdFALSE );
 
     catch_assert( vDHCPv6Process( pdTRUE, &xEndPoint ) );
@@ -3353,7 +3353,7 @@ void test_vDHCPv6Process_prvCreateDHCPv6Socket_BindSocketFail()
 
     pxNetworkEndPoints = &xEndPoint;
 
-    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
+    FreeRTOS_socket_ExpectAndReturn( FREERTOS_AF_INET6, FREERTOS_SOCK_DGRAM, FREERTOS_IPPROTO_UDP, &xLocalDHCPv6Socket );
     xSocketValid_ExpectAndReturn( &xLocalDHCPv6Socket, pdTRUE );
     prvSetCheckerAndReturn_FreeRTOS_setsockopt( &xLocalDHCPv6Socket, sizeof( TickType_t ) );
     FreeRTOS_setsockopt_Stub( xStubFreeRTOS_setsockopt );