diff --git a/base_classes/NXtransformations.nxdl.xml b/base_classes/NXtransformations.nxdl.xml
index b71e8ca3c..48a6e8b69 100644
--- a/base_classes/NXtransformations.nxdl.xml
+++ b/base_classes/NXtransformations.nxdl.xml
@@ -90,7 +90,7 @@
 		transformations for a diffractometer (goniometer).  Such use is mentioned
 		in the ``NXinstrument`` base class.  Use one ``NXtransformations`` group 
 		for each diffractometer and name the group appropriate to the device.
-		Collecting the motors of a sample table or xyz-stage in an NXtransformation
+		Collecting the motors of a sample table or xyz-stage in an NXtransformations
 		group is equally possible.
 	</doc>
 	<field name="AXISNAME" nameType="any" units="NX_TRANSFORMATION" type="NX_NUMBER" maxOccurs="unbounded">