diff --git a/applications/NXmx.nxdl.xml b/applications/NXmx.nxdl.xml
index eb0037f08..5b0ebab22 100644
--- a/applications/NXmx.nxdl.xml
+++ b/applications/NXmx.nxdl.xml
@@ -143,7 +143,7 @@
                     </dimensions>
                 </field>
 
-                <field name="data_scaling_factor" type="NX_FLOAT" optional="true">
+                <field name="data_scaling_factor" type="NX_NUMBER" optional="true">
                     <doc>
                         An optional scaling factor to apply to the values in ``data``.
 
@@ -173,7 +173,7 @@
                         (np, 1), (np, i, j) or (np, i, j, k)).
                 </doc>
                 </field>
-                <field name="data_offset" type="NX_FLOAT" optional="true">
+                <field name="data_offset" type="NX_NUMBER" optional="true">
                 <doc>
                         An optional offset to apply to the values in data.