diff --git a/lib/lib.es2015.d.ts b/lib/lib.es2015.d.ts
index 339832b546e6b..791284b6dad0b 100644
--- a/lib/lib.es2015.d.ts
+++ b/lib/lib.es2015.d.ts
@@ -21,9 +21,9 @@ and limitations under the License.
 /// <reference lib="es5" />
 /// <reference lib="es2015.core" />
 /// <reference lib="es2015.collection" />
+/// <reference lib="es2015.iterable" />
 /// <reference lib="es2015.generator" />
 /// <reference lib="es2015.promise" />
-/// <reference lib="es2015.iterable" />
 /// <reference lib="es2015.proxy" />
 /// <reference lib="es2015.reflect" />
 /// <reference lib="es2015.symbol" />
diff --git a/lib/lib.es2018.d.ts b/lib/lib.es2018.d.ts
index 73cb9812847f5..db0a3d1b027cf 100644
--- a/lib/lib.es2018.d.ts
+++ b/lib/lib.es2018.d.ts
@@ -19,8 +19,8 @@ and limitations under the License.
 
 
 /// <reference lib="es2017" />
-/// <reference lib="es2018.asyncgenerator" />
 /// <reference lib="es2018.asynciterable" />
+/// <reference lib="es2018.asyncgenerator" />
 /// <reference lib="es2018.promise" />
 /// <reference lib="es2018.regexp" />
 /// <reference lib="es2018.intl" />
diff --git a/src/lib/es2015.d.ts b/src/lib/es2015.d.ts
index ee702820e7f9e..86ffc53359eae 100644
--- a/src/lib/es2015.d.ts
+++ b/src/lib/es2015.d.ts
@@ -1,9 +1,9 @@
 /// <reference lib="es5" />
 /// <reference lib="es2015.core" />
 /// <reference lib="es2015.collection" />
+/// <reference lib="es2015.iterable" />
 /// <reference lib="es2015.generator" />
 /// <reference lib="es2015.promise" />
-/// <reference lib="es2015.iterable" />
 /// <reference lib="es2015.proxy" />
 /// <reference lib="es2015.reflect" />
 /// <reference lib="es2015.symbol" />
diff --git a/src/lib/es2018.d.ts b/src/lib/es2018.d.ts
index b7670a81c3c44..083248de022f3 100644
--- a/src/lib/es2018.d.ts
+++ b/src/lib/es2018.d.ts
@@ -1,6 +1,6 @@
 /// <reference lib="es2017" />
-/// <reference lib="es2018.asyncgenerator" />
 /// <reference lib="es2018.asynciterable" />
+/// <reference lib="es2018.asyncgenerator" />
 /// <reference lib="es2018.promise" />
 /// <reference lib="es2018.regexp" />
 /// <reference lib="es2018.intl" />