diff --git a/src/db/Operation.js b/src/db/Operation.js
index 6587e8e..9d2bcf7 100644
--- a/src/db/Operation.js
+++ b/src/db/Operation.js
@@ -11,8 +11,8 @@ class Operation {
   static create(ipfs, log, user, operation, key, value, data) {
     var createOperation = async(() => {
       return new Promise(async((resolve, reject) => {
-        const hash = Operation._createOperation(ipfs, user, operation, key, value);
-        const res = await(log.add(hash));
+        const hash = await(Operation._createOperation(ipfs, user, operation, key, value));
+        await(log.add(hash));
         const listHash = await(log.ipfsHash);
         resolve(listHash);
       }));