diff --git a/src/index.ts b/src/index.ts
index 50380a4..c104e51 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -91,11 +91,11 @@ function isIgnored(target: any): target is null | undefined | boolean {
 }
 
 function isChild(target: any): target is number | string | ReactElement<any> {
-  return typeof target === 'number' || typeof target === 'string' || typeof target === 'object' && !!target.type
+  return typeof target === 'number' || typeof target === 'string' || typeof target === 'object' && target.$$typeof === Symbol.for("react.element")
 }
 
 function addChild<P>(state: BuilderState<P>, child: ReactNode) {
   return assign({}, state, { children: [...state.children || [], child] })
 }
 
-export default njsx as NJSX
\ No newline at end of file
+export default njsx as NJSX