diff --git a/xmrstak/backend/amd/amd_gpu/opencl/cryptonight.cl b/xmrstak/backend/amd/amd_gpu/opencl/cryptonight.cl
index faea409ed195220d27cd8efb224e8dd349071955..2c775e77e1dca5fd4cd33e2b1de88b235dc114d9 100644
--- a/xmrstak/backend/amd/amd_gpu/opencl/cryptonight.cl
+++ b/xmrstak/backend/amd/amd_gpu/opencl/cryptonight.cl
@@ -1173,7 +1173,6 @@ __kernel void Blake(__global ulong *states, __global uint *BranchBuf, __global u
 
         ((uint8 *)h)[0] = vload8(0U, c_IV256);
 
-        #pragma unroll 4
         for(uint i = 0, bitlen = 0; i < 4; ++i)
         {
             if(i < 3)
@@ -1295,4 +1294,4 @@ __kernel void Groestl(__global ulong *states, __global uint *BranchBuf, __global
         }
     }
 
-)==="
+)==="
\ No newline at end of file