diff --git a/config/example.json b/config/example.json
index 2ad9073a13..0489a00db9 100644
--- a/config/example.json
+++ b/config/example.json
@@ -14,6 +14,7 @@
       "externs/bingmaps.js",
       "externs/bootstrap.js",
       "externs/closure-compiler.js",
+      "externs/esrijson.js",
       "externs/example.js",
       "externs/fastclick.js",
       "externs/geojson.js",