diff --git a/src/add-ons/kernel/drivers/network/sis900/sis900.h b/src/add-ons/kernel/drivers/network/sis900/sis900.h
index 371bceba99..2748a52aa8 100644
--- a/src/add-ons/kernel/drivers/network/sis900/sis900.h
+++ b/src/add-ons/kernel/drivers/network/sis900/sis900.h
@@ -29,10 +29,6 @@ enum SiS_revisions {
 #define DEVICE_NAME "sis900"
 #define DEVICE_DRIVERNAME "net/" DEVICE_NAME
 
-#ifndef __HAIKU__
-	typedef unsigned long addr_t;
-#endif
-
 
 /***************************** Buffer & Buffer Descriptors *****************************/