diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile
index 7f82044af24213155c8a42867c6bdd8fe8952302..bdaa924d28530e060599c476de40ece4f9d33eee 100644
--- a/drivers/net/wireless/iwlwifi/Makefile
+++ b/drivers/net/wireless/iwlwifi/Makefile
@@ -20,3 +20,5 @@ iwlagn-$(CONFIG_IWL5000) += iwl-1000.o
 # 3945
 obj-$(CONFIG_IWL3945)	+= iwl3945.o
 iwl3945-objs		:= iwl3945-base.o iwl-3945.o iwl-3945-rs.o iwl-3945-led.o
+
+ccflags-y += -D__CHECK_ENDIAN__