diff --git a/tsconfig.json b/tsconfig.json
index 13d0b80..5bd6a83 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -25,7 +25,7 @@
         // "removeComments": true,                      /* Do not emit comments to output. */
         // "noEmit": true,                              /* Do not emit outputs. */
         // "importHelpers": true,                       /* Import emit helpers from 'tslib'. */
-        // "downlevelIteration": true,                  /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+        "downlevelIteration": true,                     /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
         // "isolatedModules": true,                     /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
 
         /* Strict Type-Checking Options */