diff --git a/config/tsconfig-build.json b/config/tsconfig-build.json
index 56de194321..efd3558b0c 100644
--- a/config/tsconfig-build.json
+++ b/config/tsconfig-build.json
@@ -23,7 +23,7 @@
     /* Strict Type-Checking Options */
     "strict": false,                           /* Enable all strict type-checking options. */
     // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
-    // "strictNullChecks": true,              /* Enable strict null checks. */
+    "strictNullChecks": true,              /* Enable strict null checks. */
     // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
     // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
     // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */