diff --git a/src/ChangeLog b/src/ChangeLog
index e5571067d4a..e8243cf1c80 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2010-03-31  Chong Yidong  <cyd@stupidchicken.com>
+
+	* nsfns.m (ns_set_doc_edited): Remove unused arg OLDVAL.
+	* nsterm.h: Fix prototype.
+
 2010-03-31  Eli Zaretskii  <eliz@gnu.org>
 
 	* w32fns.c (x_create_tip_frame): Copy `parms' before we modify it
diff --git a/src/nsfns.m b/src/nsfns.m
index 9de7681b2f7..7e7fd48caf0 100644
--- a/src/nsfns.m
+++ b/src/nsfns.m
@@ -686,7 +686,7 @@ Turn the input menu (an NSMenu) into a lisp list for tracking on lisp side
 
 
 void
-ns_set_doc_edited (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
+ns_set_doc_edited (struct frame *f, Lisp_Object arg)
 {
   NSView *view = FRAME_NS_VIEW (f);
   NSAutoreleasePool *pool;
diff --git a/src/nsterm.h b/src/nsterm.h
index 10d1695dc4f..01086e63b69 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -709,7 +709,7 @@ extern int ns_lisp_to_cursor_type ();
 extern Lisp_Object ns_cursor_type_to_lisp (int arg);
 extern Lisp_Object Qnone;
 extern void ns_set_name_as_filename (struct frame *f);
-extern void ns_set_doc_edited (struct frame *f, Lisp_Object arg, Lisp_Object oldval);
+extern void ns_set_doc_edited (struct frame *f, Lisp_Object arg);
 
 extern int
 ns_defined_color (struct frame *f, char *name, XColor *color_def, int alloc,