diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 800d62205c6..a8da805d8aa 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -13,6 +13,7 @@ Sat Mar  4 10:57:25 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 	(make_cleanup_ftype): New typedef.  Make signature consistent with
  	other function typedefs.  Document as not be used out side of
  	make_cleanup code. Use in make_cleanup declarations.
+	(null_cleanup): Replace PTR with void*.
 	
 	* utils.c (make_cleanup, make_final_cleanup, make_run_cleanup,
  	make_exec_cleanup, make_exec_error_cleanup, make_my_cleanup,
diff --git a/gdb/defs.h b/gdb/defs.h
index d316afce5db..8a06f583dde 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -334,7 +334,7 @@ extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
 
 extern void free_current_contents (char **);
 
-extern void null_cleanup (PTR);
+extern void null_cleanup (void *);
 
 extern int myread (int, char *, int);