diff --git a/afsk/send_afsk.c b/afsk/send_afsk.c
index eb2d44a7..76dee0b6 100644
--- a/afsk/send_afsk.c
+++ b/afsk/send_afsk.c
@@ -33,7 +33,7 @@ static void init_rf();
 void config_x25();
 void trans_x25();
 
-int send_afsk(void) {
+int send_afsk(int tlm[][5]) {
     
     setSpiChannel(SPI_CHANNEL);
     setSpiSpeed(SPI_SPEED);