diff --git a/test/rustint/core_test.clj b/test/rustint/core_test.clj
index be5dbc3..6f0431d 100644
--- a/test/rustint/core_test.clj
+++ b/test/rustint/core_test.clj
@@ -194,6 +194,13 @@
   )
 )
 
+(deftest identificador-test06
+  (testing "Test 06 identificador"
+    (is (= (identificador? 'es_impar_primo) true))
+  )
+)
+
+
 
 (deftest palabra-reservada-test01
   (testing "Test 01 palabra reservada"