diff --git a/reference/dom/domdocumenttype.xml b/reference/dom/domdocumenttype.xml
index 3526e0a37d..282c050d9e 100644
--- a/reference/dom/domdocumenttype.xml
+++ b/reference/dom/domdocumenttype.xml
@@ -141,7 +141,7 @@
      <term><varname>internalSubset</varname></term>
      <listitem>
       <para>
-       The internal subset as a string, or null if there is none. This is
+       The internal subset as a string, or null if there is none. This
        does not contain the delimiting square brackets.
       </para>
      </listitem>