diff --git a/configure.ac b/configure.ac
index 13ed3a8235dda200e3fc436721c51aa0c3fc9f8e..d23cfc1f30f99fd84f2ae29be42549aee3a3e398 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@
 #------------------------------------------------------------------------------
 
 AC_PREREQ(2.59)
-AC_INIT([ethercat],[1.4.0-rc1],[fp@igh-essen.com])
+AC_INIT([ethercat],[devel],[fp@igh-essen.com])
 AC_CONFIG_AUX_DIR([autoconf])
 AM_INIT_AUTOMAKE([-Wall -Werror dist-bzip2])
 AC_PREFIX_DEFAULT([/opt/etherlab])