diff --git a/releasechk b/releasechk
index b7a50231..33f6b4d1 100755
--- a/releasechk
+++ b/releasechk
@@ -1,5 +1,6 @@
 #!/bin/sh -e
 
+autoreconf -i
 git submodule update --init
 ./configure --with-mruby --with-neverbleed --enable-asio-lib
-make -j3 distcheck DISTCHECK_CONFIGURE_FLAGS="--with-mruby --with-neverbleed --enable-asio-lib --enable-werror"
+make -j8 distcheck DISTCHECK_CONFIGURE_FLAGS="--with-mruby --with-neverbleed --enable-asio-lib --enable-werror"