diff --git a/base_classes/NXdetector.nxdl.xml b/base_classes/NXdetector.nxdl.xml
index 2af067b575..f1ea1f2aaf 100644
--- a/base_classes/NXdetector.nxdl.xml
+++ b/base_classes/NXdetector.nxdl.xml
@@ -3,7 +3,7 @@
 <!--
 # NeXus - Neutron and X-ray Common Data Format
 #
-# Copyright (C) 2014-2024 NeXus International Advisory Committee (NIAC)
+# Copyright (C) 2008-2024 NeXus International Advisory Committee (NIAC)
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -44,7 +44,7 @@
     <symbol name="nP"><doc>number of scan points (only present in scanning measurements)</doc></symbol>
     <symbol name="i"><doc>number of detector pixels in the first (slowest) direction</doc></symbol>
     <symbol name="j"><doc>number of detector pixels in the second (faster) direction</doc></symbol>
-    <symbol name="k"><doc>number of detector pixels in the third (if necessary, fastest) direction</doc></symbol>   
+    <symbol name="k"><doc>number of detector pixels in the third (if necessary, fastest) direction</doc></symbol>
     <symbol name="tof"><doc>number of bins in the time-of-flight histogram</doc></symbol>
   </symbols>