diff --git a/6-asyn-troubleshooting.md b/6-asyn-troubleshooting.md
index d034605aafe855ed62f39caef403da8366a2e284..b060ec3d929e8d636656ae14361298072291fb7c 100644
--- a/6-asyn-troubleshooting.md
+++ b/6-asyn-troubleshooting.md
@@ -193,7 +193,7 @@ Both the printable and unprintable characters that are sent to/from the controll
 
 ### 6.10 Manually send a command to the controller
 
-Send the **1 POS?** command to the controller to query m1's position (in controller units).
+Send the **1 POS?** command to the controller to query m1's position (in controller units) using **asynOctet.ui**.
 
 How does the controller's response differ from [before the firmware upgrade](6-asyn-troubleshooting.md#64-manually-send-a-command-to-the-controller)?