diff --git a/OpenCL/m01750_a0.cl b/OpenCL/m01750_a0.cl
index fef7b7aa2..9ccb09098 100644
--- a/OpenCL/m01750_a0.cl
+++ b/OpenCL/m01750_a0.cl
@@ -116,7 +116,7 @@ static void sha512_transform (const u64 w0[4], const u64 w1[4], const u64 w2[4],
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m01750_a1.cl b/OpenCL/m01750_a1.cl
index 211535d8a..6512ddb26 100644
--- a/OpenCL/m01750_a1.cl
+++ b/OpenCL/m01750_a1.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w0[4], const u64 w1[4], const u64 w2[4],
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m01750_a3.cl b/OpenCL/m01750_a3.cl
index 6cf93d4d6..c67483ab4 100644
--- a/OpenCL/m01750_a3.cl
+++ b/OpenCL/m01750_a3.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w0[4], const u64 w1[4], const u64 w2[4],
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m01760_a0.cl b/OpenCL/m01760_a0.cl
index 31bb8d052..4da81a559 100644
--- a/OpenCL/m01760_a0.cl
+++ b/OpenCL/m01760_a0.cl
@@ -116,7 +116,7 @@ static void sha512_transform (const u64 w0[4], const u64 w1[4], const u64 w2[4],
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m01760_a1.cl b/OpenCL/m01760_a1.cl
index 6c416f7be..c27e12276 100644
--- a/OpenCL/m01760_a1.cl
+++ b/OpenCL/m01760_a1.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w0[4], const u64 w1[4], const u64 w2[4],
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m01760_a3.cl b/OpenCL/m01760_a3.cl
index 0cbd3b26c..a0c4fbdb9 100644
--- a/OpenCL/m01760_a3.cl
+++ b/OpenCL/m01760_a3.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w0[4], const u64 w1[4], const u64 w2[4],
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m06500.cl b/OpenCL/m06500.cl
index 30e89c67f..1774d3882 100644
--- a/OpenCL/m06500.cl
+++ b/OpenCL/m06500.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w0[4], const u64 w1[4], const u64 w2[4],
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m07100.cl b/OpenCL/m07100.cl
index 23383f9c1..a5d7d1b3e 100644
--- a/OpenCL/m07100.cl
+++ b/OpenCL/m07100.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w[16], u64 dgst[8])
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m07900.cl b/OpenCL/m07900.cl
index bb2b9956c..2bba22cc2 100644
--- a/OpenCL/m07900.cl
+++ b/OpenCL/m07900.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w[16], u64 dgst[8])
 
   ROUND_STEP (0);
 
-  #pragma unroll
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m08200.cl b/OpenCL/m08200.cl
index 0ca1a0975..4a0f48378 100644
--- a/OpenCL/m08200.cl
+++ b/OpenCL/m08200.cl
@@ -321,7 +321,7 @@ static void sha512_transform (const u64 w[16], u64 dgst[8])
 
   ROUND512_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND512_EXPAND (); ROUND512_STEP (i);
diff --git a/OpenCL/m11300.cl b/OpenCL/m11300.cl
index 1a5240591..f965e4f2c 100644
--- a/OpenCL/m11300.cl
+++ b/OpenCL/m11300.cl
@@ -984,7 +984,7 @@ static void sha512_transform (const u64 w[16], u64 dgst[8])
 
   ROUND_STEP (0);
 
-//  #pragma unroll
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m12200.cl b/OpenCL/m12200.cl
index b682656e6..6119aeb8c 100644
--- a/OpenCL/m12200.cl
+++ b/OpenCL/m12200.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w[16], u64 dgst[8])
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);
diff --git a/OpenCL/m12300.cl b/OpenCL/m12300.cl
index 5f6e0f4f3..5acbf9be6 100644
--- a/OpenCL/m12300.cl
+++ b/OpenCL/m12300.cl
@@ -114,7 +114,7 @@ static void sha512_transform (const u64 w[16], u64 dgst[8])
 
   ROUND_STEP (0);
 
-  //#pragma unroll // kernel fails if used
+  //#pragma unroll
   for (int i = 16; i < 80; i += 16)
   {
     ROUND_EXPAND (); ROUND_STEP (i);