diff --git a/ChangeLog b/ChangeLog
index 52f5e72874..4e4fdc92ad 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+1997-05-27 02:20  Ulrich Drepper  <drepper@cygnus.com>
+
+	* stdio/obstream.c (obstack_printf): Fix bug in
+	de-ansidecl-fication.
+	Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.
+
 1997-05-26 22:51  Ulrich Drepper  <drepper@cygnus.com>
 
 	* configure.in: Use AC_PROG_CC_LOCAL instead of AC_PROC_CC.
diff --git a/stdio/obstream.c b/stdio/obstream.c
index e96c984d6a..af0e639c54 100644
--- a/stdio/obstream.c
+++ b/stdio/obstream.c
@@ -182,9 +182,7 @@ obstack_vprintf (obstack, format, args)
 }
 
 int
-obstack_printf (obstack, format DOTS)
-      struct obstack *obstack;
-      const char *format;
+obstack_printf (struct obstack *obstackm const char *format, ...)
 {
   int result;
   va_list ap;