@@ -58,7 +58,7 @@ function install_ryu {

     if [[ "$_RYU_INSTALLED" == "False" ]]; then

         git_clone $RYU_REPO $RYU_DIR $RYU_BRANCH

         export PYTHONPATH=$RYU_DIR:$PYTHONPATH

-        pip_install $(cat $RYU_DIR/tools/pip-requires)

+        pip_install -r $RYU_DIR/tools/pip-requires

         _RYU_INSTALLED=True

     fi

 }