diff --git a/configure b/configure
index 509e876..f69eeea 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for xprintidle 2.0.
+# Generated by GNU Autoconf 2.69 for xprintidle 2.1.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -576,8 +576,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='xprintidle'
 PACKAGE_TARNAME='xprintidle'
-PACKAGE_VERSION='2.0'
-PACKAGE_STRING='xprintidle 2.0'
+PACKAGE_VERSION='2.1'
+PACKAGE_STRING='xprintidle 2.1'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -1229,7 +1229,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures xprintidle 2.0 to adapt to many kinds of systems.
+\`configure' configures xprintidle 2.1 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1299,7 +1299,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of xprintidle 2.0:";;
+     short | recursive ) echo "Configuration of xprintidle 2.1:";;
    esac
   cat <<\_ACEOF
 
@@ -1396,7 +1396,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-xprintidle configure 2.0
+xprintidle configure 2.1
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1534,7 +1534,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by xprintidle $as_me 2.0, which was
+It was created by xprintidle $as_me 2.1, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2397,7 +2397,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='xprintidle'
- VERSION='2.0'
+ VERSION='2.1'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -4543,7 +4543,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by xprintidle $as_me 2.0, which was
+This file was extended by xprintidle $as_me 2.1, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -4600,7 +4600,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-xprintidle config.status 2.0
+xprintidle config.status 2.1
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 2f0543b..4fc7a1d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.62)
-AC_INIT([xprintidle], [2.0])
+AC_INIT([xprintidle], [2.1])
 AM_INIT_AUTOMAKE([dist-bzip2 -Wall])
 AC_CONFIG_SRCDIR([xprintidle.c])