diff --git a/typed.js b/typed.js
index fe9effd2bfb56b509a124e71936a9f1a0b0d8091..d030b5afcb9d35a595f2cb888d892876949f7da2 100644
--- a/typed.js
+++ b/typed.js
@@ -22,9 +22,11 @@ function TypedError(args) {
         args.name = errorName[0].toUpperCase() + errorName.substr(1);
     }
 
-    extend(createError, args);
     createError._name = args.name;
-
+    //remove args.name, name is not extensible under strict mode (lavamoat)
+    delete args.name
+    extend(createError, args);
+  
     return createError;
 
     function createError(opts) {