diff --git a/skillls/main.py b/skillls/main.py
index 12c5fef..5273580 100644
--- a/skillls/main.py
+++ b/skillls/main.py
@@ -93,13 +93,13 @@ class SkillLanguageServer(LanguageServer):
                         if m := re.match(r"([a-zA-Z_][a-zA-Z_0-9]*)$", line[:col]):
                             tok = m.group(1)
                         else:
-                            tok = line[col - 1]
+                            tok = "<token>"
                         yield Diagnostic(
                             Range(
                                 Position(row, col - len(tok)),
                                 Position(row, col + 1),
                             ),
-                            f"c-ism detected: change to `( {tok}`",
+                            f"change `{tok}()` to `( {tok}` [cism]",
                             DiagnosticSeverity.Hint,
                         )