diff --git a/install_nginx.sh b/install_nginx.sh
index 1d663b6..6c9fb31 100644
--- a/install_nginx.sh
+++ b/install_nginx.sh
@@ -162,7 +162,7 @@ if [[ "$@" == *"--install-passenger"* ]];then
         sudo chown $USER:$USER $HOME -R
         rvm user gemsets
         sudo chown $USER:$USER /usr/share/rvm -R
-        sudo apt install libjemalloc-dev
+        sudo apt install libjemalloc-dev -y
         rvm install 2.7.6 --with-openssl-dir="$openssl_dir" -C --with-jemalloc
         curl -sSL https://rvm.io/mpapis.asc | sudo gpg --import -
         curl -sSL https://rvm.io/pkuczynski.asc | sudo gpg --import -