diff --git a/kernel/x86/trsm_kernel_LN_2x4_penryn.S b/kernel/x86/trsm_kernel_LN_2x4_penryn.S
index ebd1377f1..16ba9a0e3 100644
--- a/kernel/x86/trsm_kernel_LN_2x4_penryn.S
+++ b/kernel/x86/trsm_kernel_LN_2x4_penryn.S
@@ -62,7 +62,7 @@
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH     prefetcht0
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
diff --git a/kernel/x86/trsm_kernel_LN_4x4_penryn.S b/kernel/x86/trsm_kernel_LN_4x4_penryn.S
index 6fa7d410e..03f8e3d79 100644
--- a/kernel/x86/trsm_kernel_LN_4x4_penryn.S
+++ b/kernel/x86/trsm_kernel_LN_4x4_penryn.S
@@ -62,7 +62,7 @@
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH     prefetcht0
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
diff --git a/kernel/x86/trsm_kernel_LT_2x4_penryn.S b/kernel/x86/trsm_kernel_LT_2x4_penryn.S
index 9ce4cd8d4..65a6cf091 100644
--- a/kernel/x86/trsm_kernel_LT_2x4_penryn.S
+++ b/kernel/x86/trsm_kernel_LT_2x4_penryn.S
@@ -62,7 +62,7 @@
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH     prefetcht0
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
diff --git a/kernel/x86/trsm_kernel_LT_4x4_penryn.S b/kernel/x86/trsm_kernel_LT_4x4_penryn.S
index a1a35a7a5..d27880b8d 100644
--- a/kernel/x86/trsm_kernel_LT_4x4_penryn.S
+++ b/kernel/x86/trsm_kernel_LT_4x4_penryn.S
@@ -62,7 +62,7 @@
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH     prefetcht0
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
diff --git a/kernel/x86/trsm_kernel_RT_2x4_penryn.S b/kernel/x86/trsm_kernel_RT_2x4_penryn.S
index a5333640d..ff8231e16 100644
--- a/kernel/x86/trsm_kernel_RT_2x4_penryn.S
+++ b/kernel/x86/trsm_kernel_RT_2x4_penryn.S
@@ -62,7 +62,7 @@
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH     prefetcht0
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
diff --git a/kernel/x86/trsm_kernel_RT_4x4_penryn.S b/kernel/x86/trsm_kernel_RT_4x4_penryn.S
index c3619ec3d..857866552 100644
--- a/kernel/x86/trsm_kernel_RT_4x4_penryn.S
+++ b/kernel/x86/trsm_kernel_RT_4x4_penryn.S
@@ -62,7 +62,7 @@
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH     prefetcht0
 #define PREFETCHSIZE  (8 * 21 + 4)
 #endif
diff --git a/kernel/x86/ztrsm_kernel_LN_2x2_penryn.S b/kernel/x86/ztrsm_kernel_LN_2x2_penryn.S
index 53e53c3ce..6d9880556 100644
--- a/kernel/x86/ztrsm_kernel_LN_2x2_penryn.S
+++ b/kernel/x86/ztrsm_kernel_LN_2x2_penryn.S
@@ -61,7 +61,7 @@
 #define PREFETCHSIZE 84
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH	prefetcht1
 #define PREFETCHSIZE 84
 #endif
diff --git a/kernel/x86/ztrsm_kernel_LT_1x2_penryn.S b/kernel/x86/ztrsm_kernel_LT_1x2_penryn.S
index 3c056cdff..452e3bf87 100644
--- a/kernel/x86/ztrsm_kernel_LT_1x2_penryn.S
+++ b/kernel/x86/ztrsm_kernel_LT_1x2_penryn.S
@@ -63,7 +63,7 @@
 #define PREFETCHSIZE 84
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH	prefetcht1
 #define PREFETCHSIZE 84
 #endif
diff --git a/kernel/x86/ztrsm_kernel_LT_2x2_penryn.S b/kernel/x86/ztrsm_kernel_LT_2x2_penryn.S
index 1efa1fd25..64232fdfb 100644
--- a/kernel/x86/ztrsm_kernel_LT_2x2_penryn.S
+++ b/kernel/x86/ztrsm_kernel_LT_2x2_penryn.S
@@ -61,7 +61,7 @@
 #define PREFETCHSIZE 84
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH	prefetcht1
 #define PREFETCHSIZE 84
 #endif
diff --git a/kernel/x86/ztrsm_kernel_RT_1x2_penryn.S b/kernel/x86/ztrsm_kernel_RT_1x2_penryn.S
index 849afed73..71246d7a6 100644
--- a/kernel/x86/ztrsm_kernel_RT_1x2_penryn.S
+++ b/kernel/x86/ztrsm_kernel_RT_1x2_penryn.S
@@ -63,7 +63,7 @@
 #define PREFETCHSIZE 84
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH	prefetcht1
 #define PREFETCHSIZE 84
 #endif
diff --git a/kernel/x86/ztrsm_kernel_RT_2x2_penryn.S b/kernel/x86/ztrsm_kernel_RT_2x2_penryn.S
index c1833abe2..dfd555c88 100644
--- a/kernel/x86/ztrsm_kernel_RT_2x2_penryn.S
+++ b/kernel/x86/ztrsm_kernel_RT_2x2_penryn.S
@@ -61,7 +61,7 @@
 #define PREFETCHSIZE 84
 #endif
 
-#if defined(NEHALEM) || defined(SANDYBRIDGE)
+#if defined(NEHALEM) || defined(SANDYBRIDGE) || defined(HASWELL)
 #define PREFETCH	prefetcht1
 #define PREFETCHSIZE 84
 #endif