diff --git a/arch/powerpc/cpu/mpc5xx/start.S b/arch/powerpc/cpu/mpc5xx/start.S
index 22fb27418db6b9b49965a6e4ea0768d49403e798..6b196de355a5f7ad6b0f86d9b9f131a5cb31f439 100644
--- a/arch/powerpc/cpu/mpc5xx/start.S
+++ b/arch/powerpc/cpu/mpc5xx/start.S
@@ -19,8 +19,6 @@
 #include <mpc5xx.h>
 #include <version.h>
 
-#define CONFIG_5xx 1		/* needed for Linux kernel header files */
-
 #include <ppc_asm.tmpl>
 #include <ppc_defs.h>