diff --git a/src/add-ons/kernel/drivers/network/bcm440x/b44um.c b/src/add-ons/kernel/drivers/network/bcm440x/b44um.c
index 307be04a6f..758ce933cd 100644
--- a/src/add-ons/kernel/drivers/network/bcm440x/b44um.c
+++ b/src/add-ons/kernel/drivers/network/bcm440x/b44um.c
@@ -45,6 +45,9 @@ int32	 b44_interrupt(void *cookie);
 int32 tx_cleanup_thread(void *us);
 
 
+int32 api_version = B_CUR_DRIVER_API_VERSION;
+
+
 status_t
 init_hardware(void)
 {
diff --git a/src/add-ons/kernel/drivers/network/bcm570x/b57um.c b/src/add-ons/kernel/drivers/network/bcm570x/b57um.c
index 4425a206e7..0295747866 100644
--- a/src/add-ons/kernel/drivers/network/bcm570x/b57um.c
+++ b/src/add-ons/kernel/drivers/network/bcm570x/b57um.c
@@ -265,6 +265,7 @@ static int32 b57_interrupt(void *cookie);
 static int32 tx_cleanup_thread(void *us);
 
 device_hooks b57_hooks = {b57_open,b57_close,b57_free,b57_ioctl,b57_read,b57_write,NULL,NULL,NULL,NULL};
+int32 api_version = B_CUR_DRIVER_API_VERSION;
 
 //int debug_fd;