diff --git a/sys/modules/agp/Makefile b/sys/modules/agp/Makefile
index 6bdf2fd567ab..878fbb0ca8ca 100644
--- a/sys/modules/agp/Makefile
+++ b/sys/modules/agp/Makefile
@@ -20,6 +20,7 @@ SRCS+=	agp_amd64.c
 SRCS+=	device_if.h bus_if.h agp_if.h pci_if.h
 SRCS+=	opt_bdg.h opt_bus.h
 MFILES=	kern/device_if.m kern/bus_if.m pci/agp_if.m dev/pci/pci_if.m
+WERROR=
 
 EXPORT_SYMS=	agp_find_device		\
 		agp_state		\