diff --git a/configure.ac b/configure.ac
index 0df416ae3b..ad76317820 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,4 @@
-dnl require autoconf 2.60 (AS_ECHO/AS_ECHO_N)
-AC_PREREQ([2.60])
+AC_PREREQ([2.69])
 define(_CLIENT_VERSION_MAJOR, 0)
 define(_CLIENT_VERSION_MINOR, 19)
 define(_CLIENT_VERSION_REVISION, 99)