diff --git a/autogen.sh b/autogen.sh
index 15729eb..ecd2cdd 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -7,5 +7,5 @@
 echo "Running libtoolize --automake --copy ... "
 libtoolize --automake --copy || exit
 echo "Running autoreconf --verbose --install"
-autoreconf --verbose --install || exit
+autoreconf --force --verbose --install || exit
 echo "Now run ./configure."