diff --git a/src/sys/svc/hasp_telnet.cpp b/src/sys/svc/hasp_telnet.cpp
index d5a5b3c6..8e4e9248 100644
--- a/src/sys/svc/hasp_telnet.cpp
+++ b/src/sys/svc/hasp_telnet.cpp
@@ -379,7 +379,7 @@ IRAM_ATTR void telnetLoop()
             while(int16_t key = telnetConsole->readKey()) {
                 switch(key) {
                     case 0xf8:
-                    case KEY_CTRL('C'): // ^C = Cancel (Quit)
+                    case KEY_CTRL('C'): // 0x03 = ^C = Cancel (Quit)
                         telnetClientDisconnect();
                         break;