diff --git a/autogen.sh b/autogen.sh
old mode 100644
new mode 100755
index e2f3852..47825ed
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,32 +1,33 @@
 #!/bin/bash
 
 if [ $# -ne 1 ]; then
     echo "Usage: $0 <version>"
     exit 1
 fi
 
 version=$1
 
 if [ ! -x "$(which npm 2>/dev/null)" ]; then
     echo "No npm executable found."
     exit 1
 fi
 
 npm install
 npm install bower
 node_modules/bower/bin/bower install
+npm dedupe
 
 mkdir -p ../manticore-${version}/
 rm -rf ../manticore-${version}/*
 for file in `git ls-files`; do
     mkdir -p ../manticore-${version}/$(dirname ${file})
     cp -a ${file} ../manticore-${version}/${file}
 done
 
 cp -a client/bower_components ../manticore-${version}/client/.
 cp -a node_modules ../manticore-${version}/.
 
 wd=$(pwd)
 pushd ..
 tar czvf ${wd}/manticore-${version}+deps.tar.gz manticore-${version}/
 popd