diff --git a/skillls/main.py b/skillls/main.py
index d7cc287..1f60d30 100644
--- a/skillls/main.py
+++ b/skillls/main.py
@@ -100,7 +100,7 @@ class SkillLanguageServer(LanguageServer):
                                 Position(row, col + 1),
                             ),
                             f"c-ism detected: change to `( {tok}`",
-                            DiagnosticSeverity.Warning,
+                            DiagnosticSeverity.Hint,
                         )
 
     def diagnose(self, doc: TextDocument) -> None: