diff --git a/realm/tsconfig.json b/realm/tsconfig.json
index 5241fe5f57..ae6e53ac64 100644
--- a/realm/tsconfig.json
+++ b/realm/tsconfig.json
@@ -2,7 +2,8 @@
     "compilerOptions": {
         "module": "commonjs",
         "lib": [
-            "es6"
+            "es6",
+            "dom"
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,