diff --git a/ANNOUNCE b/ANNOUNCE
index 20f7538ca..ab0437588 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.4.13beta02 - January 1, 2013
+Libpng 1.4.13beta02 - January 3, 2013
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -37,7 +37,9 @@ version 1.4.13beta01 [January 1, 2013]
   Removed references to png_zalloc() and png_zfree() from the manual.
   Ignore, with a warning, out-of-range value of num_trans in png_set_tRNS().
 
-version 1.4.13beta02 [January 1, 2013]
+version 1.4.13beta02 [January 3, 2013]
+  Replaced AM_CONFIG_HEADER(config.h) with AC_CONFIG_HEADERS([config.h])
+    in configure.ac
 
 Send comments/corrections/commendations to glennrp at users.sourceforge.net
 or to png-mng-implement at lists.sf.net (subscription required; visit
diff --git a/CHANGES b/CHANGES
index bc498c443..999c048a0 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2879,8 +2879,9 @@ version 1.4.13beta01 [January 1, 2013]
   Removed references to png_zalloc() and png_zfree() from the manual.
   Ignore, with a warning, out-of-range value of num_trans in png_set_tRNS().
 
-version 1.4.13beta02 [January 1, 2013]
-  No changes.
+version 1.4.13beta02 [January 3, 2013]
+  Replaced AM_CONFIG_HEADER(config.h) with AC_CONFIG_HEADERS([config.h])
+    in configure.ac
 
 Send comments/corrections/commendations to glennrp at users.sourceforge.net
 or to png-mng-implement at lists.sf.net (subscription required; visit
diff --git a/configure.ac b/configure.ac
index 8cf470846..ff344658a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,7 +31,7 @@ PNGLIB_RELEASE=13
 dnl End of version number stuff
 
 AC_CONFIG_SRCDIR([pngget.c])
-AM_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADERS([config.h])
 
 # Checks for programs.
 AC_PROG_CC