diff --git a/kernel/x86_64/zsymv_L_sse.S b/kernel/x86_64/zsymv_L_sse.S
index f818170a3..204e5e6ab 100644
--- a/kernel/x86_64/zsymv_L_sse.S
+++ b/kernel/x86_64/zsymv_L_sse.S
@@ -57,7 +57,7 @@
 #define PREFETCHSIZE	(16 * 24)
 #endif
 
-#if defined(NEHALEM) || defined(NEHALEM_OPTIMIZATION)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH	prefetcht0
 #define PREFETCHW	prefetcht0
 #define PREFETCHSIZE	(16 * 24)
diff --git a/kernel/x86_64/zsymv_L_sse2.S b/kernel/x86_64/zsymv_L_sse2.S
index 7b6c5976d..5769d242a 100644
--- a/kernel/x86_64/zsymv_L_sse2.S
+++ b/kernel/x86_64/zsymv_L_sse2.S
@@ -57,7 +57,7 @@
 #define PREFETCHSIZE	(16 * 24)
 #endif
 
-#if defined(NEHALEM) || defined(NEHALEM_OPTIMIZATION)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH	prefetcht0
 #define PREFETCHW	prefetcht0
 #define PREFETCHSIZE	(16 * 24)
diff --git a/kernel/x86_64/zsymv_U_sse.S b/kernel/x86_64/zsymv_U_sse.S
index 6dabf0735..6f782b1e2 100644
--- a/kernel/x86_64/zsymv_U_sse.S
+++ b/kernel/x86_64/zsymv_U_sse.S
@@ -57,7 +57,7 @@
 #define PREFETCHSIZE	(16 * 24)
 #endif
 
-#if defined(NEHALEM) || defined(NEHALEM_OPTIMIZATION)
+#if defined(NEHALEM) || defined(SANDYBRIDGE)  || defined(HASWELL)
 #define PREFETCH	prefetcht0
 #define PREFETCHW	prefetcht0
 #define PREFETCHSIZE	(16 * 24)
diff --git a/kernel/x86_64/zsymv_U_sse2.S b/kernel/x86_64/zsymv_U_sse2.S
index df64d8045..f92779e24 100644
--- a/kernel/x86_64/zsymv_U_sse2.S
+++ b/kernel/x86_64/zsymv_U_sse2.S
@@ -57,7 +57,7 @@
 #define PREFETCHSIZE	(16 * 24)
 #endif
 
-#if defined(NEHALEM) || defined(NEHALEM_OPTIMIZATION)
+#if defined(NEHALEM) || defined(SANDYBRIDGE)  || defined(HASWELL)
 #define PREFETCH	prefetcht0
 #define PREFETCHW	prefetcht0
 #define PREFETCHSIZE	(16 * 24)