diff --git a/ArduCopter/defines.h b/ArduCopter/defines.h
index 5a0dcbfd91..9bd0fb9f88 100644
--- a/ArduCopter/defines.h
+++ b/ArduCopter/defines.h
@@ -87,14 +87,6 @@
 // Note channels are from 0!
 //
 // XXX these should be CH_n defines from RC.h at some point.
-#define CH_1 0
-#define CH_2 1
-#define CH_3 2
-#define CH_4 3
-#define CH_5 4
-#define CH_6 5
-#define CH_7 6
-#define CH_8 7
 #define CH_10 9    //PB5
 #define CH_11 10   //PE3