diff --git a/src/os_vms.c b/src/os_vms.c
index 7c2d872..30d29b9 100644
--- a/src/os_vms.c
+++ b/src/os_vms.c
@@ -77,8 +77,8 @@
 
 
 
-static TT_MODE	get_tty __ARGS((void));
-static void	set_tty __ARGS((int row, int col));
+static TT_MODE	get_tty(void);
+static void	set_tty(int row, int col);
 
 #define EXPL_ALLOC_INC 64