diff --git a/include/asm-ppc/system.h b/include/asm-ppc/system.h
index cc45780421cac15412e44ef5fc62a425aa089fe8..51df94c73846c6d248c41e5743732efd5b1ae1f0 100644
--- a/include/asm-ppc/system.h
+++ b/include/asm-ppc/system.h
@@ -33,6 +33,7 @@
 
 #define set_mb(var, value)	do { var = value; mb(); } while (0)
 
+#define AT_VECTOR_SIZE_ARCH 6 /* entries in ARCH_DLINFO */
 #ifdef CONFIG_SMP
 #define smp_mb()	mb()
 #define smp_rmb()	rmb()