diff --git a/arch/arm/cpu/ixp/start.S b/arch/arm/cpu/ixp/start.S
index f71a398..f8bfed7 100644
--- a/arch/arm/cpu/ixp/start.S
+++ b/arch/arm/cpu/ixp/start.S
@@ -110,7 +110,7 @@
 
 .globl _bss_end_ofs
 _bss_end_ofs:
-	.word _end - _start
+	.word __bss_end__ - _start
 
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */