diff --git a/scripts/install b/scripts/install
index fbd5efc..ee8b14d 100644
--- a/scripts/install
+++ b/scripts/install
@@ -184,9 +184,6 @@ npm install typescript@>=2.0 --save
 npm install ts-node
 popd
 
-#cp ../conf/package.json "$final_path/package.json"
-#ynh_replace_string "__PORT__" "$port" "$final_path/package.json"
-
 #Fix a error in the public page
 ynh_replace_string "res.writeHead(200)" "res.writeHead(200, {\"content-type\": \"text/html\",})" "$final_path/src/distbin-html/public.ts"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 667e3f1..55a7b26 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -125,6 +125,8 @@ npm install typescript@>=2.0 --save
 npm install ts-node
 popd
 
+#Fix a error in the public page
+ynh_replace_string "res.writeHead(200)" "res.writeHead(200, {\"content-type\": \"text/html\",})" "$final_path/src/distbin-html/public.ts"
 
 ### Verify the checksum of a file, stored by `ynh_store_file_checksum` in the install script.
 ### And create a backup of this file if the checksum is different. So the file will be backed up if the admin had modified it.