diff --git a/test/rustint/core_test.clj b/test/rustint/core_test.clj
index dce8f51..23f9e5c 100644
--- a/test/rustint/core_test.clj
+++ b/test/rustint/core_test.clj
@@ -49,3 +49,9 @@
     (is (= (pasar-a-int 10) 10))
   )
 )
+
+(deftest pasar-a-int-test04
+  (testing "Test 04 int pasar-a-int"
+    (is (= (pasar-a-int 'a) 'a))
+  )
+)