diff --git a/contiki-cpc/arch/crt0-backup.s b/contiki-cpc/arch/crt0-backup.s
deleted file mode 100644
index b014aa8..0000000
--- a/contiki-cpc/arch/crt0-backup.s
+++ /dev/null
@@ -1,33 +0,0 @@
-;; File: crt0.s
-;; Generic crt0.s for a Z80
-;; From SDCC..
-;; Modified to suit execution on the Amstrad CPC!
-;; by H. Hansen 2003
-
-    .module crt0
-	.globl	_main
-	.globl _progend
-	.area _HEADER (ABS)
-	.org 	0x100 ;; Start from address &100
-init:
-
-;; Initialise global variables
-    call    gsinit
-	call	_main
-
-_exit::
-	ret
-
-	;; Ordering of segments for the linker.
-	.area	_HOME
-	.area	_CODE
-	.area	_DATA
-	 .area   _BSS
-	
-	.area   _GSINIT
-gsinit::	
-
-    .area   _GSFINAL
-    ret
-    	.area   _HEAP
-_progend::