diff --git a/asminc/fmode.inc b/asminc/fcntl.inc
similarity index 69%
rename from asminc/fmode.inc
rename to asminc/fcntl.inc
index cf2db3a7c..16a254952 100644
--- a/asminc/fmode.inc
+++ b/asminc/fcntl.inc
@@ -2,9 +2,12 @@
 ; Ullrich von Bassewitz, 05.06.1999
 ;
 
+; Predefined file handles
+STDIN_FILENO    = 0
+STDOUT_FILENO   = 1
+STDERR_FILENO   = 2
+
 ; File mode constants, must match the values in the C headers
-
-
 O_RDONLY	= $01
 O_WRONLY	= $02
 O_RDWR		= $03
@@ -13,3 +16,4 @@ O_TRUNC		= $20
 O_APPEND	= $40
 
 
+