diff --git a/makerelease.sh b/makerelease.sh
index dd22feb3..cfd32baf 100755
--- a/makerelease.sh
+++ b/makerelease.sh
@@ -9,6 +9,8 @@ git checkout refs/tags/$TAG
 git log --pretty=fuller --date=short refs/tags/$PREV_TAG..HEAD > ChangeLog
 
 git submodule update --init
+
+autoreconf -i
 ./configure --with-mruby && \
     make dist-bzip2 && make dist-gzip && make dist-xz || echo "error"
 make distclean