diff --git a/configure.ac b/configure.ac
index c590c6b0b0aa6ad3c5843d1acf5bf799e04c1567..2451ae338758180869bbf5e904c8053a53cbdb71 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,12 +1,4 @@
-# Process this file with autoconf to produce a configure script.
-#
-# Make sure we use autoconf 2.60 to generate the "configure" script,
-# in case we want to commit it. Other than that, version 2.59 is
-# perfectly fine for our purposes, so people who want to modify
-# this file just have to remember to set the AC_PREREQ argument
-# to something that suits their needs.
-
-AC_PREREQ(2.60)
+AC_PREREQ(2.60a)
 
 AC_INIT([asterisk], [trunk], [https://issues.asterisk.org])