diff --git a/cmake/cn-gpu.cmake b/cmake/cn-gpu.cmake
index 81092519b..b529f0b2d 100644
--- a/cmake/cn-gpu.cmake
+++ b/cmake/cn-gpu.cmake
@@ -9,11 +9,9 @@ if (WITH_CN_GPU AND CMAKE_SIZEOF_VOID_P EQUAL 8)
     else()
         set(CN_GPU_SOURCES src/crypto/cn_gpu_avx.cpp src/crypto/cn_gpu_ssse3.cpp)
 
-        if (CMAKE_CXX_COMPILER_ID MATCHES GNU)
+        if (CMAKE_CXX_COMPILER_ID MATCHES GNU OR CMAKE_CXX_COMPILER_ID MATCHES Clang)
             set_source_files_properties(src/crypto/cn_gpu_avx.cpp PROPERTIES COMPILE_FLAGS "-O3 -mavx2")
             set_source_files_properties(src/crypto/cn_gpu_ssse3.cpp PROPERTIES COMPILE_FLAGS "-O3")
-        elseif (CMAKE_CXX_COMPILER_ID MATCHES Clang)
-            set_source_files_properties(src/crypto/cn_gpu_avx.cpp PROPERTIES COMPILE_FLAGS "-mavx2")
         elseif (CMAKE_CXX_COMPILER_ID MATCHES MSVC)
             set_source_files_properties(src/crypto/cn_gpu_avx.cpp PROPERTIES COMPILE_FLAGS "/arch:AVX")
         endif()