diff --git a/src/tests/kits/net/new_stack/protocols/arp/arp.c b/src/tests/kits/net/new_stack/protocols/arp/arp.c
index 82e067c9d0..1005fc1774 100644
--- a/src/tests/kits/net/new_stack/protocols/arp/arp.c
+++ b/src/tests/kits/net/new_stack/protocols/arp/arp.c
@@ -134,7 +134,7 @@ static status_t process_input(net_layer *me, net_buffer *buffer)
 	if (!buffer)
 		return B_ERROR;
 		
-	if (g_stack->find_buffer_attribute(buffer, ethernet_protocol_attr, 0, NULL, &protocol, NULL) != B_OK)
+	if (g_stack->find_buffer_attribute(buffer, ethernet_protocol_attr, 0, NULL, (void **) &protocol, NULL) != B_OK)
 		return B_ERROR;
 
 	if (*protocol != htons(0x0806))	// ARP on Ethernet protocol value
diff --git a/src/tests/kits/net/new_stack/protocols/ipv4/ipv4.c b/src/tests/kits/net/new_stack/protocols/ipv4/ipv4.c
index 0e20bea5c8..d7e074b7d7 100644
--- a/src/tests/kits/net/new_stack/protocols/ipv4/ipv4.c
+++ b/src/tests/kits/net/new_stack/protocols/ipv4/ipv4.c
@@ -118,7 +118,7 @@ static status_t process_input(net_layer *me, net_buffer *buffer)
 	if (!buffer)
 		return B_ERROR;
 
-	if (g_stack->find_buffer_attribute(buffer, ethernet_protocol_attr, 0, NULL, &protocol, NULL) != B_OK)
+	if (g_stack->find_buffer_attribute(buffer, ethernet_protocol_attr, 0, NULL, (void **) &protocol, NULL) != B_OK)
 		return B_ERROR;
 
 	if (*protocol != htons(0x0800))	// IPv4 on Ethernet protocol value