diff --git a/src/add-ons/kernel/drivers/network/bcm440x/Jamfile b/src/add-ons/kernel/drivers/network/bcm440x/Jamfile
index 544f0109a2..e4c5627c99 100644
--- a/src/add-ons/kernel/drivers/network/bcm440x/Jamfile
+++ b/src/add-ons/kernel/drivers/network/bcm440x/Jamfile
@@ -3,6 +3,8 @@ SubDir OBOS_TOP src add-ons kernel drivers network bcm440x ;
 # For ether_driver.h
 UsePrivateHeaders net ;
 
+ObjectCcFlags [ FGristFiles b44lm.o ] : -w ;
+
 R5KernelAddon bcm440x : kernel drivers bin :
 	b44lm.c
 	b44um.c