diff --git a/src/tsconfig-base.json b/src/tsconfig-base.json
index e9925f3a98b..4d83436a538 100644
--- a/src/tsconfig-base.json
+++ b/src/tsconfig-base.json
@@ -1,7 +1,7 @@
 {
     "compilerOptions": {
         "pretty": true,
-        "lib": ["es2015"],
+        "lib": ["es2015.iterable", "es5"],
         "target": "es5",
         "rootDir": ".",