diff --git a/nxdl.xsd b/nxdl.xsd
index 09dc5f5596..60725e635e 100644
--- a/nxdl.xsd
+++ b/nxdl.xsd
@@ -868,7 +868,8 @@
 							
 							In simple terms, the allowed values mean:
 							
-							* ``scaler`` = 0-D data to be plotted
+							* ``scalar`` = 0-D data to be plotted
+							* ``scaler`` = DEPRECATED, use ``scalar``
 							* ``spectrum`` = 1-D data to be plotted
 							* ``image`` = 2-D data to be plotted
 							* ``rgbimage`` = 2-D images with colour as added 3rd dimension
@@ -883,6 +884,7 @@
 					<xs:simpleType>
                         <xs:restriction base="nx:NX_CHAR">
                         	<xs:enumeration value="scalar"/>
+                        	<xs:enumeration value="scaler"/>
                         	<xs:enumeration value="spectrum"/>
                         	<xs:enumeration value="image"/>
                         	<xs:enumeration value="rgbimage"/>