diff --git a/src/proto/os_beos.pro b/src/proto/os_beos.pro
index c537101..bccf45d 100644
--- a/src/proto/os_beos.pro
+++ b/src/proto/os_beos.pro
@@ -1,4 +1,4 @@
 /* os_beos.c */
-void beos_cleanup_read_thread __ARGS((void));
-int beos_select __ARGS((int nbits, struct fd_set *rbits, struct fd_set *wbits, struct fd_set *ebits, struct timeval *timeout));
+void beos_cleanup_read_thread(void);
+int beos_select(int nbits, struct fd_set *rbits, struct fd_set *wbits, struct fd_set *ebits, struct timeval *timeout);
 /* vim: set ft=c : */