diff --git a/amd_gpu/gpu.c b/amd_gpu/gpu.c
index 7571e5d..57a20bf 100644
--- a/amd_gpu/gpu.c
+++ b/amd_gpu/gpu.c
@@ -163,10 +163,12 @@ const char* err_to_str(cl_int ret)
 		return "CL_INVALID_LINKER_OPTIONS";
 	case CL_INVALID_DEVICE_PARTITION_COUNT:
 		return "CL_INVALID_DEVICE_PARTITION_COUNT";
+#ifdef CL_VERSION_2_0
 	case CL_INVALID_PIPE_SIZE:
 		return "CL_INVALID_PIPE_SIZE";
 	case CL_INVALID_DEVICE_QUEUE:
 		return "CL_INVALID_DEVICE_QUEUE";
+#endif
 	default:
 		return "UNKNOWN_ERROR";
 	}