diff --git a/reference/pdo_odbc/constants.xml b/reference/pdo_odbc/constants.xml
index acf728d280c2..244fee28e5aa 100644
--- a/reference/pdo_odbc/constants.xml
+++ b/reference/pdo_odbc/constants.xml
@@ -5,6 +5,17 @@
  &reftitle.constants;
  &pdo.driver-constants;
  <variablelist>
+  <varlistentry xml:id="pdo-odbc.constants.pdo-odbc-type">
+   <term>
+    <constant>PDO_ODBC_TYPE</constant>
+    (<type>string</type>)
+   </term>
+   <listitem>
+    <para>
+
+    </para>
+   </listitem>
+  </varlistentry>
   <varlistentry xml:id="pdo.constants.odbc-attr-use-cursor-library">
    <term>
     <constant>PDO::ODBC_ATTR_USE_CURSOR_LIBRARY</constant>