--- a/lib/prefs.cpp
+++ b/lib/prefs.cpp
@@ -224,7 +224,7 @@
max_bytes_sec_down = 0;
max_bytes_sec_up = 0;
max_ncpus = 0;
-#ifdef ANDROID
+#ifdef __ANDROID__
max_ncpus_pct = 50;
#else
max_ncpus_pct = 0;