diff --git a/src_CUDA/Makefile b/src_CUDA/Makefile
index e8c24e1..e6ee263 100755
--- a/src_CUDA/Makefile
+++ b/src_CUDA/Makefile
@@ -1,6 +1,9 @@
 # Please add right gencode for older CUDA/GPU: -gencode arch=compute_35,code=sm_35 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_60,code=sm_60
 
 bitcracker_cuda:
+	#To use Clang compiler uncomment below:
+	#nvcc -ccbin clang-11 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_80,code=sm_80 -Xptxas -v -o bitcracker_cuda main.cu cuda_attack.cu utils.cu w_blocks.cu
+	#Ensure CUDA has GCC/G++ linked properly for this to work
 	nvcc -gencode arch=compute_70,code=sm_70 -gencode arch=compute_80,code=sm_80 -Xptxas -v -o bitcracker_cuda main.cu cuda_attack.cu utils.cu w_blocks.cu
 
 clean:
diff --git a/src_OpenCL/Makefile b/src_OpenCL/Makefile
index 1e000e2..fb68572 100755
--- a/src_OpenCL/Makefile
+++ b/src_OpenCL/Makefile
@@ -7,7 +7,9 @@ MAKE_INCLUDE=$(COMMON_INCLUDE) $(NVIDIA_INCLUDE) -cl-std=CL1.2 -O3
 
 all:
 	gcc $(MAKE_INCLUDE) $(FLAGS) -o bitcracker_opencl main.c opencl_attack.c utils.c w_blocks.c -lOpenCL
-#	clang -framework OpenCL -o bitcracker_opencl main.c opencl_attack.c utils.c w_blocks.c
+	#To use default CL version uncomment below(expect alot of warnings):
+	#gcc $(COMMON_INCLUDE) $(NVIDIA_INCLUDE) -O3 $(FLAGS) -o bitcracker_opencl main.c opencl_attack.c utils.c w_blocks.c -lOpenCL
+	#clang -framework OpenCL -o bitcracker_opencl main.c opencl_attack.c utils.c w_blocks.c
 
 
 clean: