diff --git a/src/autogen.sh b/src/autogen.sh
index 7cdf4b80..60c50f0c 100755
--- a/src/autogen.sh
+++ b/src/autogen.sh
@@ -1,4 +1,6 @@
+#!/bin/sh
+
 aclocal
-libtoolize
-automake --add-missing
+libtoolize --copy
+automake --add-missing --force-missing --copy
 autoconf