Fix misdefine.
diff --git a/main.c b/main.c
index 51f70d2..5515a4a 100644
--- a/main.c
+++ b/main.c
@@ -5846,7 +5846,7 @@ void enable_device(struct cgpu_info *cgpu)
cgpu->enabled = true;
devices[cgpu->cgminer_id = cgminer_id_count++] = cgpu;
mining_threads += cgpu->threads;
-#ifdef OPENCL
+#ifdef HAVE_OPENCL
if (cgpu->api == &opencl_api) {
gpu_threads += cgpu->threads;
}