diff --git a/scripts/install b/scripts/install
index 5debcc0..106128d 100755
--- a/scripts/install
+++ b/scripts/install
@@ -14,7 +14,7 @@ if [[ ! $? -eq 0 ]]; then
 fi
 
 # Check that admin user is an existing account
-sudo yunohost user list | python ../conf/user_list.py | grep "^$admin_user$" >/dev/null
+sudo yunohost user list --json | grep -q "\"username\": \"$admin_user\""
 if [[ ! $? -eq 0 ]]; then
     echo "Error : the chosen admin user does not exist"
     exit 1