diff --git a/server/drivers/ula200.c b/server/drivers/ula200.c
index 31c328f..0e6b951 100644
--- a/server/drivers/ula200.c
+++ b/server/drivers/ula200.c
@@ -233,7 +233,7 @@ ula200_ftdi_read_response(Driver *drvthis)
 /**
  * Write a command to the display. Adds the STX and ETX header/trailer.
  *
- * \param p        the private data
+ * \param drvthis  Pointer to driver structure
  * \param data     the data bytes
  * \param length   the number of bytes in @p data which are valid
  * \param escape   if the data should be escaped (see the User's Guide of the