diff --git a/index.html b/index.html
index 687365c..25e736f 100644
--- a/index.html
+++ b/index.html
@@ -228,8 +228,8 @@ <h2>Window interface extensions</h2>
 </p>
 <pre class='idl'>
 partial interface Window {
-  long requestIdleCallback(IdleRequestCallback callback, optional unsigned long timeout);
-  void cancelIdleCallback(long handle);
+  unsigned long requestIdleCallback(IdleRequestCallback callback, optional unsigned long timeout);
+  void cancelIdleCallback(unsigned long handle);
 };
 
 interface IdleDeadline {
@@ -404,5 +404,5 @@ <h2>Processing Model</h2>
 <section id="acknowledgements" class="appendix">
 <h2>Acknowledgments</h2>
 <p>
-The editors would like to thank the following people for contributing to this specification: Sami Kyostila, Alex Clarke, Boris Zbarsky, Marcos Caceres, Jonas Sicking, Robert O'Callahan, Todd Reifsteck, Tobin Titus, Ilya Grigorik, Elliott Sprehn, Lon Ingram and Philippe Le Hegaret.
+The editors would like to thank the following people for contributing to this specification: Sami Kyostila, Alex Clarke, Boris Zbarsky, Marcos Caceres, Jonas Sicking, Robert O'Callahan, Todd Reifsteck, Tobin Titus, Ilya Grigorik, Elliott Sprehn, Tetsuharu OHZEKI, Lon Ingram and Philippe Le Hegaret.
 </p>