diff --git a/afsk/main.c b/afsk/main.c
index f452efeb..26da73d9 100644
--- a/afsk/main.c
+++ b/afsk/main.c
@@ -36,8 +36,8 @@
 #include <time.h>
 #include "ina219.h"
 
-// Put your callsign here
-#define CALLSIGN "KU2Y"
+
+#define CALLSIGN "" // Put your callsign here!
 #define VBATT 15
 #define ADC5 17
 #define ADC6 18