diff --git a/base_classes/NXdata.nxdl.xml b/base_classes/NXdata.nxdl.xml
index c7f2c58535..d291f5a123 100644
--- a/base_classes/NXdata.nxdl.xml
+++ b/base_classes/NXdata.nxdl.xml
@@ -87,14 +87,14 @@
 
 		The :ref:`AXISNAME </NXdata/AXISNAME-field>` fields contain the axis coordinates associated with the signal values.
 
-		`Default axes`
+		``Default axes``
 
 		The :ref:`axes </NXdata@axes-attribute>` attribute provides the names of the :ref:`AXISNAME </NXdata/AXISNAME-field>`
 		fields to be used as the default axis for each dimension of the :ref:`DATA </NXdata/DATA-field>` fields.
 		As a result the length of the :ref:`axes </NXdata@axes-attribute>` attribute must be equal to the rank of the :ref:`DATA </NXdata/DATA-field>`
 		fields. When a particular dimension has no default axis, the string “.” is used in that position.
 
-		`Spanned dimensions`
+		``Spanned dimensions``
 
 		The :ref:`AXISNAME_indices </NXdata@AXISNAME_indices-attribute>` attributes describe the
 		:ref:`DATA </NXdata/DATA-field>` dimensions spanned by the corresponding :ref:`AXISNAME </NXdata/AXISNAME-field>` fields.
@@ -110,7 +110,7 @@
 		can be spanned by more than one :ref:`AXISNAME </NXdata/AXISNAME-field>` field. As stated before, the default
 		axis name (if any) of each dimension can be found in the :ref:`axes </NXdata@axes-attribute>` attribute.
 
-		`Available axes`
+		``Available axes``
 
 		With this definition of the :ref:`axes </NXdata@axes-attribute>` and :ref:`AXISNAME_indices </NXdata@AXISNAME_indices-attribute>` attributes
 		a list of all available axes is not provided directly. All strings in the :ref:`axes </NXdata@axes-attribute>` attribute