diff --git a/stlink-tnc3.cfg b/stlink-tnc3.cfg
index 37aaca1..adcea77 100644
--- a/stlink-tnc3.cfg
+++ b/stlink-tnc3.cfg
@@ -9,5 +9,4 @@ source [find target/stm32l4x.cfg]
 
 reset_config srst_only
 itm port 0 on
-tpiu config internal swv uart off 80000000
-
+tpiu config internal swv uart off 48000000