diff --git a/configure.ac b/configure.ac
index 93d7dbb06..6ca08db5d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,7 +31,7 @@ dnl
 dnl Process this file with autoconf to produce a configure script.
 
 dnl Require autoconf >= 2.59
-AC_PREREQ([2.69])
+AC_PREREQ([2.59])
 
 dnl Init autoconf
 AC_INIT