diff --git a/src/main/io/serial_cli.c b/src/main/io/serial_cli.c
index 5d400c6ee8..c84d59e332 100755
--- a/src/main/io/serial_cli.c
+++ b/src/main/io/serial_cli.c
@@ -1444,7 +1444,7 @@ static void cliSerialPassthrough(char *cmdline)
     }
 
     printf("Relaying data to device on port %d, Reset your board to exit "
-           "serial passthrough mode.\r\n");
+           "serial passthrough mode.\r\n", id);
 
     serialPassthrough(cliPort, passThroughPort, NULL, NULL);
 }