diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index 2c3231c90..edca1c3c2 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -2598,7 +2598,9 @@ export default class MetamaskController extends EventEmitter {
       if (loginToken && loginSalt) {
         const { vault } = this.keyringController.store.getState();
 
-        if (vault.salt !== loginSalt) {
+        const jsonVault = JSON.parse(vault);
+
+        if (jsonVault.salt !== loginSalt) {
           console.warn(
             'submitEncryptionKey: Stored salt and vault salt do not match',
           );