diff --git a/core/base64.js b/core/base64.js
index 5182c295..48e28c31 100644
--- a/core/base64.js
+++ b/core/base64.js
@@ -100,7 +100,7 @@ export default {
 
         // If there are any bits left, the base64 string was corrupted
         if (leftbits) {
-            err = new Error('Corrupted base64 string');
+            var err = new Error('Corrupted base64 string');
             err.name = 'Base64-Error';
             throw err;
         }
diff --git a/core/websock.js b/core/websock.js
index a4959152..f9c1256c 100644
--- a/core/websock.js
+++ b/core/websock.js
@@ -267,7 +267,7 @@ Websock.prototype = {
         if (this._rQbufferSize > MAX_RQ_GROW_SIZE) {
             this._rQbufferSize = MAX_RQ_GROW_SIZE;
             if (this._rQbufferSize - this._rQlen - this._rQi < min_fit) {
-                throw new Exception("Receive Queue buffer exceeded " + MAX_RQ_GROW_SIZE + " bytes, and the new message could not fit");
+                throw new Error("Receive Queue buffer exceeded " + MAX_RQ_GROW_SIZE + " bytes, and the new message could not fit");
             }
         }