diff --git a/platform/jn516x/dev/micromac-radio.c b/platform/jn516x/dev/micromac-radio.c
index e2d087aa2..6b91cc51b 100644
--- a/platform/jn516x/dev/micromac-radio.c
+++ b/platform/jn516x/dev/micromac-radio.c
@@ -57,8 +57,6 @@
 #include "JPT.h"
 #include "PeripheralRegs.h"
 
-void vMMAC_SetChannelAndPower(uint8 u8Channel, int8 i8power);
-
 /* This driver configures the radio in PHY mode and does address decoding
  * and acknowledging in software. */