diff --git a/doc/en/Gdk/EventMask.xml b/doc/en/Gdk/EventMask.xml
index 2d7970f97..f56d8a7f1 100644
--- a/doc/en/Gdk/EventMask.xml
+++ b/doc/en/Gdk/EventMask.xml
@@ -8,7 +8,7 @@
   </AssemblyInfo>
   <ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
   <Docs>
-    <summary>To be added</summary>
+    <summary>A set of bit-flags to indicate which events a window is to receive. Most of these masks map onto one or more of the <see cref="T:Gdk.EventType" /> event types above.</summary>
     <remarks>To be added</remarks>
   </Docs>
   <Base>
@@ -57,7 +57,7 @@
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>See the explanation above.</summary>
+        <summary>Special mask which is used to reduce the number of <see cref="T:Gdk.EventMask" />.MotionNotify events received</summary>
         <remarks>
         </remarks>
       </Docs>
diff --git a/doc/en/Gdk/EventType.xml b/doc/en/Gdk/EventType.xml
index 08608d0d1..8e861e506 100644
--- a/doc/en/Gdk/EventType.xml
+++ b/doc/en/Gdk/EventType.xml
@@ -457,7 +457,7 @@
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>The state of a window has changed. See <see cref="T:Gdk.WindowState" /> for the possible window states.</summary>
+        <summary>The state of a window has changed. See <see cref="T:Gdk.WindowState" /> for the possible window states</summary>
         <remarks>
         </remarks>
       </Docs>