diff --git a/Makefile b/Makefile
index e4e3aac..33db331 100755
--- a/Makefile
+++ b/Makefile
@@ -1728,11 +1728,13 @@ endif
 
 ifeq ($(CONFIG_PLATFORM_ARM_RPI), y)
 EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN
-ARCH := arm
-CROSS_COMPILE :=
+EXTRA_CFLAGS += -DCONFIG_IOCTL_CFG80211 -DRTW_USE_CFG80211_STA_EVENT
+ARCH ?= arm
+CROSS_COMPILE ?=
 KVER ?= $(shell uname -r)
-KSRC ?= /lib/modules/$(KVER)/build
+KSRC := /lib/modules/$(KVER)/build
 MODDESTDIR := /lib/modules/$(KVER)/kernel/drivers/net/wireless/
+INSTALL_PREFIX :=
 endif
 
 ifeq ($(CONFIG_PLATFORM_RTK129X), y)