diff --git a/tslib.es6.js b/tslib.es6.js
index bd73dce..4e85378 100644
--- a/tslib.es6.js
+++ b/tslib.es6.js
@@ -54,8 +54,7 @@ export function __rest(s, e) {
 
 export function __decorate(decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
-    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
-    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
+    for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
     return c > 3 && r && Object.defineProperty(target, key, r), r;
 }
 
diff --git a/tslib.js b/tslib.js
index 4e2462e..1943925 100644
--- a/tslib.js
+++ b/tslib.js
@@ -95,8 +95,7 @@ var __createBinding;
 
     __decorate = function (decorators, target, key, desc) {
         var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
-        if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
-        else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
+        for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
         return c > 3 && r && Object.defineProperty(target, key, r), r;
     };