diff --git a/PixelatorControllerSettings.md b/PixelatorControllerSettings.md
index f25d6f3..cd5fe4f 100644
--- a/PixelatorControllerSettings.md
+++ b/PixelatorControllerSettings.md
@@ -90,7 +90,7 @@ ScanNumber is a three digit number, starting with 001 every day.
  **Default**: "NONE"
 
  **beamline**::<BR>
-&emsp;String value that is written into the scan file at _/entry*/collection/beamline_
+&emsp;String value that is written into the scan file at _/entry*/collection/beamline_ in order to identify the instrument.
 
 ### scripts
  **changeUserScript**::<BR>