Shell scripts specified in _SCRIPTS primary isn't shown in dist tarball

I'm using Automake to maintain the package, there are some shell scripts which don't need to compile, so I install them using _SCRIPT primary:

Makefile.am: 

bin_SCRIPTS = script1.sh

But the tarball generated with ma开发者_开发技巧ke dist doesn't contain this script1.sh file. Is there something I missed in the Makefile.am?

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Use dist_bin_SCRIPTS = script1.sh.