diff --git a/scripts/install b/scripts/install
index 05c9070..771da11 100644
--- a/scripts/install
+++ b/scripts/install
@@ -16,7 +16,7 @@ venv/bin/pip3 install -U gunicorn psycopg2-binary psycopg2 django-auth-ldap3-ad
 venv/bin/lucterios_admin.py installed
 ynh_add_config --template="../conf/extra_diacamma.json" --destination="/tmp/extra.json"
 extra_json=$(jq -c . /tmp/extra.json)
-venv/bin/lucterios_admin.py add -n inst-${app} -p "${APPLITYPE}" -m "${MODULES}" -d "${DATABASE}" -e "'"$extra_json"'"
+venv/bin/lucterios_admin.py add -n inst-${app} -p "${APPLITYPE}" -m "${MODULES}" -d "${DATABASE}" -e ''$extra_json''
 popd
 
 refresh_collect