diff --git a/ChangeLog b/ChangeLog
index cb88a8b0..505ea40f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2011-04-14  Werner Koch  <wk@g10code.com>
+
+	* configure.ac: Require automake 1.11.
+
 2011-04-06  Werner Koch  <wk@g10code.com>
 
 	* autogen.sh (--build-w32): Support option --build-w64.
diff --git a/configure.ac b/configure.ac
index 3ab77082..a27f0335 100644
--- a/configure.ac
+++ b/configure.ac
@@ -21,7 +21,7 @@
 
 # (Process this file with autoconf to produce a configure script.)
 AC_PREREQ(2.59)
-min_automake_version="1.10"
+min_automake_version="1.11"
 
 # Version number: Remember to change it immediately *after* a release.
 #                 Make sure to run  "svn up" and "./autogen.sh --force"