diff --git a/sys/conf/kmod.mk b/sys/conf/kmod.mk
index 6b4a7460e0a5..1b36bcbae97d 100644
--- a/sys/conf/kmod.mk
+++ b/sys/conf/kmod.mk
@@ -132,7 +132,7 @@ CFLAGS+=	-fno-omit-frame-pointer
 .endif
 
 .if ${MACHINE_ARCH} == "powerpc"
-CFLAGS+=	-mlongcall
+CFLAGS+=	-mlongcall -fno-omit-frame-pointer
 .endif
 
 OBJS+=	${SRCS:N*.h:R:S/$/.o/g}