diff --git a/tests/test_hgvs_validator.py b/tests/test_hgvs_validator.py
index <HASH>..<HASH> 100644
--- a/tests/test_hgvs_validator.py
+++ b/tests/test_hgvs_validator.py
@@ -73,7 +73,7 @@ class Test_HGVSIntrinsicValidator(unittest.TestCase):
         self.assertTrue(self.validate_int.validate(self.hp.parse_hgvs_variant('AC_01234.5:c.76_78delACT')))
         self.assertTrue(self.validate_int.validate(self.hp.parse_hgvs_variant('AC_01234.5:c.123+54_123+55delTA')))
         self.assertTrue(self.validate_int.validate(self.hp.parse_hgvs_variant('AC_01234.5:c.76_78del')))
-        self.validate_int.validate(self.hp.parse_hgvs_variant('NM_000030.2:c.679_680+2delAAGT'))
+        self.assertTrue(self.validate_int.validate(self.hp.parse_hgvs_variant('NM_000030.2:c.679_680+2delAAGT')))
         with self.assertRaises(HGVSValidationError):
             self.validate_int.validate(self.hp.parse_hgvs_variant('AC_01234.5:c.76_78delACTACAT'))
Add the forgetten assertion in the test for validating del length