diff --git a/libethash-cl/ethash_cl_miner.cpp b/libethash-cl/ethash_cl_miner.cpp
index 2ada903d1..836f0daa5 100644
--- a/libethash-cl/ethash_cl_miner.cpp
+++ b/libethash-cl/ethash_cl_miner.cpp
@@ -52,6 +52,15 @@
 #define CL_MEM_HOST_READ_ONLY 0
 #endif
 
+// apple fix
+#ifndef CL_DEVICE_COMPUTE_CAPABILITY_MAJOR_NV
+#define CL_DEVICE_COMPUTE_CAPABILITY_MAJOR_NV       0x4000
+#endif
+
+#ifndef CL_DEVICE_COMPUTE_CAPABILITY_MINOR_NV
+#define CL_DEVICE_COMPUTE_CAPABILITY_MINOR_NV       0x4001
+#endif
+
 #undef min
 #undef max