--- a/thermferm/lcd-buffer.c Sun Aug 10 21:22:17 2014 +0200 +++ b/thermferm/lcd-buffer.c Sun Aug 10 23:36:22 2014 +0200 @@ -48,7 +48,7 @@ int i = 0; va_start(va_ptr, format); - vsnprintf(buf, Config.lcd_cols * sizeof(char), format, va_ptr); + vsnprintf(buf, (Config.lcd_cols + 1) * sizeof(char), format, va_ptr); va_end(va_ptr); /*