diff --git a/websocket-sharp/Ext.cs b/websocket-sharp/Ext.cs
index d43f4952..027a9b43 100644
--- a/websocket-sharp/Ext.cs
+++ b/websocket-sharp/Ext.cs
@@ -399,6 +399,17 @@ namespace WebSocketSharp
       eventHandler (sender, e);
     }
 
+    internal static void Emit<TEventArgs> (
+      this EventHandler<TEventArgs> eventHandler, object sender, TEventArgs e
+    )
+      where TEventArgs : EventArgs
+    {
+      if (eventHandler == null)
+        return;
+
+      eventHandler (sender, e);
+    }
+
     /// <summary>
     /// Determines whether the specified <see cref="int"/> equals the specified <see cref="char"/>,
     /// and invokes the specified <c>Action&lt;int&gt;</c> delegate at the same time.
@@ -1288,33 +1299,6 @@ namespace WebSocketSharp
 
     #region Public Methods
 
-    /// <summary>
-    /// Emits the specified <c>EventHandler&lt;TEventArgs&gt;</c> delegate if it isn't
-    /// <see langword="null"/>.
-    /// </summary>
-    /// <param name="eventHandler">
-    /// An <c>EventHandler&lt;TEventArgs&gt;</c> to emit.
-    /// </param>
-    /// <param name="sender">
-    /// An <see cref="object"/> from which emits this <paramref name="eventHandler"/>.
-    /// </param>
-    /// <param name="e">
-    /// A <c>TEventArgs</c> that represents the event data.
-    /// </param>
-    /// <typeparam name="TEventArgs">
-    /// The type of the event data generated by the event.
-    /// </typeparam>
-    public static void Emit<TEventArgs> (
-      this EventHandler<TEventArgs> eventHandler, object sender, TEventArgs e
-    )
-      where TEventArgs : EventArgs
-    {
-      if (eventHandler == null)
-        return;
-
-      eventHandler (sender, e);
-    }
-
     /// <summary>
     /// Gets the description of the specified HTTP status code.
     /// </summary>