diff --git a/configure.ng b/configure.ng
index 2a9fa04a..0b0a6588 100644
--- a/configure.ng
+++ b/configure.ng
@@ -22,7 +22,7 @@ m4_ifdef([AM_SILENT_RULES],
 
 # -- Initialisation --
 
-AC_PREREQ([2.67])
+AC_PREREQ([2.61])
 AC_INIT([ngIRCd],[VERSION_ID],[ngircd-ml@ngircd.barton.de],[ngircd],[http://ngircd.barton.de/])
 
 AC_CONFIG_SRCDIR([src/ngircd/ngircd.c])