1 files changed, 1 insertions, 0 deletions
diff --git a/src/checkable.ts b/src/checkable.ts
index 2255209f1..a8cc38221 100644
--- a/src/checkable.ts
+++ b/src/checkable.ts
@@ -157,6 +157,7 @@ export namespace Checkable {
       const value = target[key];
       prop.valueProp.checker(value, prop.valueProp, path.concat([key]));
     }
+    return target;
   }