diff --git a/doc/en/Gtk/TreeStore.xml b/doc/en/Gtk/TreeStore.xml
index 431c36d75..6c155589b 100644
--- a/doc/en/Gtk/TreeStore.xml
+++ b/doc/en/Gtk/TreeStore.xml
@@ -1245,10 +1245,8 @@ store = new TreeStore (typeof (int), typeof (string));
         <remarks>
 	    This property is meant primarily for classes that
 	    inherit from <see cref="T:Gtk.TreeStore" />, and should
-	    only be used when constructing a new <see
-	    cref="T:Gtk.TreeStore" />. It will not function after a
-	    row has been added or after a method on the <see
-	    cref="T:Gtk.TreeModel" /> interface has been called.
+	    only be used when constructing a new <see cref="T:Gtk.TreeStore" />. It will not function after a
+	    row has been added or after a method on the <see cref="T:Gtk.TreeModel" /> interface has been called.
 	</remarks>
       </Docs>
     </Member>
@@ -1267,6 +1265,22 @@ store = new TreeStore (typeof (int), typeof (string));
         <remarks>See <see cref="M:Gtk.TreeStore.ColumnTypes" /></remarks>
       </Docs>
     </Member>
+    <Member MemberName="GetColumnType">
+      <MemberSignature Language="C#" Value="public virtual GLib.GType GetColumnType (int index_);" />
+      <MemberType>Method</MemberType>
+      <ReturnValue>
+        <ReturnType>GLib.GType</ReturnType>
+      </ReturnValue>
+      <Parameters>
+        <Parameter Name="index_" Type="System.Int32" />
+      </Parameters>
+      <Docs>
+        <summary>Gets the type of data stored in column number <paramref name="index_" />.</summary>
+        <param name="index_">a <see cref="T:System.Int32" />, the column to check</param>
+        <returns>a <see cref="T:GLib.GType" /></returns>
+        <remarks />
+      </Docs>
+    </Member>
     <Member MemberName="OnRowsReordered">
       <MemberSignature Language="C#" Value="protected virtual void OnRowsReordered (Gtk.TreePath path, Gtk.TreeIter iter, out int new_order);" />
       <MemberType>Method</MemberType>