diff --git a/lib/Client/InternalClient.js b/lib/Client/InternalClient.js
index 2a83c85aa..26e0f289e 100644
--- a/lib/Client/InternalClient.js
+++ b/lib/Client/InternalClient.js
@@ -1147,7 +1147,7 @@ var InternalClient = (function () {
 	//def updateDetails
 
 	InternalClient.prototype.updateDetails = function updateDetails(data) {
-		if (!email) {
+		if (!this.email) {
 			throw new Error("Can't use updateDetails because only a token has been used for login!");
 		}
 		return this.apiRequest("patch", _Constants.Endpoints.ME, true, {
diff --git a/src/Client/InternalClient.js b/src/Client/InternalClient.js
index bd373083f..e2e83a999 100644
--- a/src/Client/InternalClient.js
+++ b/src/Client/InternalClient.js
@@ -969,7 +969,7 @@ export default class InternalClient {
 
 	//def updateDetails
 	updateDetails(data) {
-		if(!email) {
+		if(!this.email) {
 			throw new Error("Can't use updateDetails because only a token has been used for login!");
 		}
 		return this.apiRequest("patch", Endpoints.ME, true, {