diff --git a/callsign.cpp b/callsign.cpp
index 4c7203a..6a683bc 100644
--- a/callsign.cpp
+++ b/callsign.cpp
@@ -1,4 +1,4 @@
 #include "callsign.h"
 
-const char CALLSIGN_STRING_PRIVATE [] PROGMEM = "CALLSIGN";
-const char* const CALLSIGN_STRING = CALLSIGN_STRING_PRIVATE;
\ No newline at end of file
+const char CALLSIGN_STRING_PRIVATE [] PROGMEM = "DL6MHC";
+const char* const CALLSIGN_STRING = CALLSIGN_STRING_PRIVATE;