diff --git a/src/autoconf/Makefile b/src/autoconf/Makefile
index 499622e..7814a98 100644
--- a/src/autoconf/Makefile
+++ b/src/autoconf/Makefile
@@ -1,7 +1,7 @@
 CPPFLAGS=-I/usr/depot/include
 LDFLAGS=-L/usr/depot/lib -lpsyc -lgnunetutil -lgnunetcadet
 
-../configure-do: configure.in configure.head Makefile
+../configure-do: configure.ac configure.head Makefile
 	autoreconf
 	rm -f $@
 	cat configure.head configure >>$@
diff --git a/src/autoconf/configure.in b/src/autoconf/configure.ac
similarity index 100%
rename from src/autoconf/configure.in
rename to src/autoconf/configure.ac
diff --git a/src/version.sh b/src/version.sh
index 1b9a458..725b29d 100644
--- a/src/version.sh
+++ b/src/version.sh
@@ -17,7 +17,7 @@ version_longtype="stable"
 # A timestamp, to be used by bumpversion and other scripts.
 # It can be used, for example, to 'touch' this file on every build, thus
 # forcing revision control systems to add it on every checkin automatically.
-version_stamp="Wed Aug 10 13:52:57 CEST 2016"
+version_stamp="Wed Aug 10 16:50:41 CEST 2016"
 
 # Okay, LDMUD is using 3.x.x so to avoid conflicts let's just use 4.x.x
 version_major=4