diff --git a/kernel/x86_64/casum_microk_skylakex-2.c b/kernel/x86_64/casum_microk_skylakex-2.c
index 5e27c67e4a..37b914e846 100644
--- a/kernel/x86_64/casum_microk_skylakex-2.c
+++ b/kernel/x86_64/casum_microk_skylakex-2.c
@@ -29,7 +29,7 @@ static FLOAT casum_kernel(BLASLONG n, FLOAT *x)
         
         abs_mask1 = (__m128)_mm_set1_epi32(0x7fffffff);
                 
-        _mm_prefetch(&x1[0], _MM_HINT_T0);
+        _mm_prefetch((const char*)&x1[0], _MM_HINT_T0);
         
         if (n2 >= 32){
             __m128 x00 = _mm_loadu_ps(&x1[ 0]);
@@ -37,7 +37,7 @@ static FLOAT casum_kernel(BLASLONG n, FLOAT *x)
             __m128 x02 = _mm_loadu_ps(&x1[ 8]);
             __m128 x03 = _mm_loadu_ps(&x1[12]);
             
-            _mm_prefetch(&x1[16], _MM_HINT_T0);
+            _mm_prefetch((const char*)&x1[16], _MM_HINT_T0);
             __m128 x04 = _mm_loadu_ps(&x1[16]);
             __m128 x05 = _mm_loadu_ps(&x1[20]);
             __m128 x06 = _mm_loadu_ps(&x1[24]);
diff --git a/kernel/x86_64/csum_microk_skylakex-2.c b/kernel/x86_64/csum_microk_skylakex-2.c
index 99ae00ad84..2c4b2973b7 100644
--- a/kernel/x86_64/csum_microk_skylakex-2.c
+++ b/kernel/x86_64/csum_microk_skylakex-2.c
@@ -26,7 +26,7 @@ static FLOAT casum_kernel(BLASLONG n, FLOAT *x)
         accum_12 = _mm_setzero_ps();
         accum_13 = _mm_setzero_ps();
         
-        _mm_prefetch(&x1[0], _MM_HINT_T0);
+        _mm_prefetch((const char*)&x1[0], _MM_HINT_T0);
         
         if (n2 >= 32){
             __m128 x00 = _mm_loadu_ps(&x1[ 0]);
@@ -34,7 +34,7 @@ static FLOAT casum_kernel(BLASLONG n, FLOAT *x)
             __m128 x02 = _mm_loadu_ps(&x1[ 8]);
             __m128 x03 = _mm_loadu_ps(&x1[12]);
             
-            _mm_prefetch(&x1[16], _MM_HINT_T0);
+            _mm_prefetch((const char*)&x1[16], _MM_HINT_T0);
             __m128 x04 = _mm_loadu_ps(&x1[16]);
             __m128 x05 = _mm_loadu_ps(&x1[20]);
             __m128 x06 = _mm_loadu_ps(&x1[24]);
diff --git a/kernel/x86_64/zasum_microk_skylakex-2.c b/kernel/x86_64/zasum_microk_skylakex-2.c
index 9ec2c61be8..c19b7b6950 100644
--- a/kernel/x86_64/zasum_microk_skylakex-2.c
+++ b/kernel/x86_64/zasum_microk_skylakex-2.c
@@ -30,14 +30,14 @@ static FLOAT zasum_kernel(BLASLONG n, FLOAT *x)
         
         abs_mask1 = (__m128d)_mm_set1_epi64x(0x7fffffffffffffff);
                 
-        _mm_prefetch(&x1[0], _MM_HINT_T0);
+        _mm_prefetch((const char*)&x1[0], _MM_HINT_T0);
         if (n2 >= 16){
             __m128d x00 = _mm_loadu_pd(&x1[ 0]);
             __m128d x01 = _mm_loadu_pd(&x1[ 2]);
             __m128d x02 = _mm_loadu_pd(&x1[ 4]);
             __m128d x03 = _mm_loadu_pd(&x1[ 6]);
             
-            _mm_prefetch(&x1[8], _MM_HINT_T0);
+            _mm_prefetch((const char*)&x1[8], _MM_HINT_T0);
             __m128d x04 = _mm_loadu_pd(&x1[ 8]);
             __m128d x05 = _mm_loadu_pd(&x1[10]);
             __m128d x06 = _mm_loadu_pd(&x1[12]);
diff --git a/kernel/x86_64/zsum_microk_skylakex-2.c b/kernel/x86_64/zsum_microk_skylakex-2.c
index a8b4343fd9..b74d57cdad 100644
--- a/kernel/x86_64/zsum_microk_skylakex-2.c
+++ b/kernel/x86_64/zsum_microk_skylakex-2.c
@@ -27,14 +27,14 @@ static FLOAT zsum_kernel(BLASLONG n, FLOAT *x)
         accum_12 = _mm_setzero_pd();
         accum_13 = _mm_setzero_pd();
         
-        _mm_prefetch(&x1[0], _MM_HINT_T0);
+        _mm_prefetch((const char*)&x1[0], _MM_HINT_T0);
         if (n2 >= 16){
             __m128d x00 = _mm_loadu_pd(&x1[ 0]);
             __m128d x01 = _mm_loadu_pd(&x1[ 2]);
             __m128d x02 = _mm_loadu_pd(&x1[ 4]);
             __m128d x03 = _mm_loadu_pd(&x1[ 6]);
             
-            _mm_prefetch(&x1[8], _MM_HINT_T0);
+            _mm_prefetch((const char*)&x1[8], _MM_HINT_T0);
             __m128d x04 = _mm_loadu_pd(&x1[ 8]);
             __m128d x05 = _mm_loadu_pd(&x1[10]);
             __m128d x06 = _mm_loadu_pd(&x1[12]);