diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h
index 817fac0a0714a8705d6b6d8ce1bd85ef85523822..dae19342f0b90f3d2083d92f0834ce0053817118 100644
--- a/arch/powerpc/include/asm/setup.h
+++ b/arch/powerpc/include/asm/setup.h
@@ -1,6 +1,6 @@
 #ifndef _ASM_POWERPC_SETUP_H
 #define _ASM_POWERPC_SETUP_H
 
-#define COMMAND_LINE_SIZE	512
+#include <asm-generic/setup.h>
 
 #endif	/* _ASM_POWERPC_SETUP_H */