diff --git a/bin/do_pylint.sh b/bin/do_pylint.sh
index b53f984..a290158 100755
--- a/bin/do_pylint.sh
+++ b/bin/do_pylint.sh
@@ -29,5 +29,6 @@ while test $# -gt 0
 export PYTHONPATH
 export PYLINTRC
 
+[ ! -x /usr/bin/pylint ] && echo "please run \"apt-get install pylint\" first" && exit 1
 pylint $ARGS
 
diff --git a/debian/changelog b/debian/changelog
index 1ffe402..e16dad6 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-cryptobox (0.2.99-2) unstable; urgency=low
+cryptobox (0.3.0) unstable; urgency=low
 
   * fixed a typo