diff --git a/tests/unit/core/validator.cc b/tests/unit/core/validator.cc
index ce062ca75..412968f06 100644
--- a/tests/unit/core/validator.cc
+++ b/tests/unit/core/validator.cc
@@ -236,12 +236,12 @@ description = "Manifest Test library"
     {
       auto x = valid_profile(None, None);
       expect(x.is_ok());
-      expect(not x.unwrap().has_value());
+      expect(!x.unwrap().has_value());
     }
     {
       auto x = valid_profile(None, false);
       expect(x.is_ok());
-      expect(not x.unwrap().has_value());
+      expect(!x.unwrap().has_value());
     }
     {
       auto x = valid_profile(None, true);