diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
deleted file mode 100644
index e69de29..0000000
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 810707c..2c7f5c0 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -44,7 +44,7 @@ ynh_add_supervisor_config () {
     local template="${template:-supervisor.service}"
     others_var="${others_var:-}"
 
-    [[ -z "$others_var" ]] || ynh_print_warn --message="Packagers: using --others_var is unecessary since Yunohost 4.2"
+    [[ -z "$others_var" ]] || ynh_print_warn --message="Packagers: using  others var is unecessary since Yunohost 4.2"
 
     ynh_add_config --template="$YNH_APP_BASEDIR/conf/$template" --destination="/etc/supervisor/conf.d/$service.conf"
 
diff --git a/scripts/install b/scripts/install
index ba92175..e2d1e59 100755
--- a/scripts/install
+++ b/scripts/install
@@ -51,7 +51,7 @@ ynh_script_progression --message="Building app..."
 
 pushd "$install_dir"
 	ynh_use_nodejs
-	ynh_npm install --production
+	ynh_exec_warn_less ynh_npm install --production
 popd
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 3d4c978..84eaf41 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -69,7 +69,7 @@ ynh_script_progression --message="Building app..."
 
 pushd "$install_dir"
 	ynh_use_nodejs
-	ynh_npm install --production
+	ynh_exec_warn_less ynh_npm install --production
 popd
 
 #=================================================