diff --git a/lib/x11/ext/composite.js b/lib/x11/ext/composite.js
index 7de4818..545504d 100644
--- a/lib/x11/ext/composite.js
+++ b/lib/x11/ext/composite.js
@@ -45,49 +45,49 @@ exports.requireExt = function(display, callback)
         {
             X.seq_num++;
             console.log("ext.RedirectWindow", X.seq_num);
-            X.pack_stream.pack('CCSLLCxxx', [ext.majorOpcode, 1, 4, window, updateType]);
+            X.pack_stream.pack('CCSLCxxx', [ext.majorOpcode, 1, 3, window, updateType]);
             X.pack_stream.flush();
         }
 
         ext.RedirectSubwindows = function( window, updateType )
         {
             X.seq_num++;
-            X.pack_stream.pack('CCSLLCxxx', [ext.majorOpcode, 2, 4, window, updateType]);
+            X.pack_stream.pack('CCSLCxxx', [ext.majorOpcode, 2, 3, window, updateType]);
             X.pack_stream.flush();
         }
 
         ext.UnredirectWindow = function(window)
         {
             X.seq_num++;
-            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 3, 3, window]);
+            X.pack_stream.pack('CCSL', [ext.majorOpcode, 3, 2, window]);
             X.pack_stream.flush();
         }
 
         ext.UnredirectSubwindows = function(window)
         {
             X.seq_num++;
-            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 4, 3, window]);
+            X.pack_stream.pack('CCSL', [ext.majorOpcode, 4, 2, window]);
             X.pack_stream.flush();
         }
 
         ext.CreateRegionFromBorderClip = function(region, window)
         {
             X.seq_num++;
-            X.pack_stream.pack('CCSLLL', [ext.majorOpcode, 5, 4, damage, region]);
+            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 5, 3, damage, region]);
             X.pack_stream.flush();
         }
 
         ext.NameWindowPixmap = function(window, pixmap)
         {
             X.seq_num++;
-            X.pack_stream.pack('CCSLLL', [ext.majorOpcode, 6, 4, window, pixmap]);
+            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 6, 3, window, pixmap]);
             X.pack_stream.flush();
         }
  
         ext.GetOverlayWindow = function(window)
         {
             X.seq_num++;
-            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 7, 3]);
+            X.pack_stream.pack('CCSL', [ext.majorOpcode, 7, 2]);
             X.replies[X.seq_num] = [
                 function(buf, opt) {
                     var res = buf.unpack('L');
@@ -101,7 +101,7 @@ exports.requireExt = function(display, callback)
         ext.ReleaseOverlayWindow = function(window)
         {
             X.seq_num++;
-            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 8, 3, window]);
+            X.pack_stream.pack('CCSL', [ext.majorOpcode, 8, 2, window]);
             X.pack_stream.flush();
         }