diff --git a/scripts/install b/scripts/install
index 964ff73..f3c54c6 100644
--- a/scripts/install
+++ b/scripts/install
@@ -133,12 +133,12 @@ ynh_script_progression --message="Building $app... (this will take some time and
 
 pushd "$final_path"
 	ynh_use_nodejs
-	ynh_exec_warn_less yarn install --non-interactive --silent
-	ynh_exec_warn_less yarn global add knex-migrator
-	ynh_exec_warn_less NODE_ENV=production knex-migrator init
-	ynh_exec_warn_less yarn global add grunt-cli ember-cli
-	ynh_exec_warn_less NODE_ENV=production grunt symlink
-	ynh_exec_warn_less NODE_ENV=production grunt init --force
+	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH yarn install --non-interactive --silent
+	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH yarn global add knex-migrator
+	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH NODE_ENV=production knex-migrator init
+	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH yarn global add grunt-cli ember-cli
+	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH NODE_ENV=production grunt symlink
+	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH NODE_ENV=production grunt init --force
 popd
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 1f54707..149d381 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -158,12 +158,12 @@ then
 	ynh_script_progression --message="Building $app... (this will take some time and resources!)"
 
 	pushd "$final_path"
-		ynh_exec_warn_less yarn install
-		ynh_exec_warn_less yarn global add knex-migrator
-		ynh_exec_warn_less NODE_ENV=production knex-migrator init
-		ynh_exec_warn_less yarn global add grunt
-		ynh_exec_warn_less NODE_ENV=production grunt symlink
-		ynh_exec_warn_less NODE_ENV=production grunt init --force
+		ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH yarn install
+		ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH yarn global add knex-migrator
+		ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH NODE_ENV=production knex-migrator init
+		ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH yarn global add grunt
+		ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH NODE_ENV=production grunt symlink
+		ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH NODE_ENV=production grunt init --force
 	popd
 fi