diff --git a/drivers/net/wireless/orinoco/Makefile b/drivers/net/wireless/orinoco/Makefile
index 9abd6329bcbd..e6452698eba9 100644
--- a/drivers/net/wireless/orinoco/Makefile
+++ b/drivers/net/wireless/orinoco/Makefile
@@ -11,3 +11,6 @@ obj-$(CONFIG_PCI_HERMES)	+= orinoco_pci.o
 obj-$(CONFIG_TMD_HERMES)	+= orinoco_tmd.o
 obj-$(CONFIG_NORTEL_HERMES)	+= orinoco_nortel.o
 obj-$(CONFIG_PCMCIA_SPECTRUM)	+= spectrum_cs.o
+
+# Orinoco should be endian clean.
+ccflags-y += -D__CHECK_ENDIAN__