diff --git a/afsk/main.c b/afsk/main.c
index a53eb26a..c8ea7caf 100644
--- a/afsk/main.c
+++ b/afsk/main.c
@@ -37,7 +37,7 @@
 #include "ina219.h"
 
 
-#define CALLSIGN "KU2Y" // Put your callsign here!
+#define CALLSIGN "" // Put your callsign here!
 #define VBATT 15
 #define ADC5 17
 #define ADC6 18