diff --git a/frontend/src/app/data.service.ts b/frontend/src/app/data.service.ts
index cb2e820..d5b69c7 100644
--- a/frontend/src/app/data.service.ts
+++ b/frontend/src/app/data.service.ts
@@ -250,7 +250,7 @@ export class DataService {
   */
     public async savePreset(preset: any){
       const promise = new Promise(resolve=>{
-        let serializableResource = {name: preset.name, definition: preset.definition};
+        let serializableResource = {name: preset.name, definition: JSON.stringify(preset.definition)};
         let strigifiedResource = JSON.stringify(serializableResource);
         let resJson = JSON.parse(strigifiedResource) as typeof strigifiedResource;
         console.log(resJson);