diff --git a/kernel/power/gemv_n_ppc440.S b/kernel/power/gemv_n_ppc440.S
index 18d804520..b5b68d5c2 100644
--- a/kernel/power/gemv_n_ppc440.S
+++ b/kernel/power/gemv_n_ppc440.S
@@ -131,6 +131,10 @@
 
 #define alpha  f27
 
+#if defined(PPC440)
+#define PREFETCHSIZE_A  (3 * 4)
+#endif
+
 #if defined(PPCG4)
 #define PREFETCHSIZE_A  (3 * 4)
 #endif