diff --git a/code/lib/core-client/tsconfig.json b/code/lib/core-client/tsconfig.json
index abfd2f8784b6..cb1c83813c18 100644
--- a/code/lib/core-client/tsconfig.json
+++ b/code/lib/core-client/tsconfig.json
@@ -2,6 +2,6 @@
   "extends": "../../tsconfig.json",
   "include": ["src/**/*", "typings.d.ts"],
   "compilerOptions": {
-    "strict": false
+    "strict": true
   }
 }