diff --git a/cpp_linter/clang_tools/clang_tidy.py b/cpp_linter/clang_tools/clang_tidy.py
index 67d9384f..896585b9 100644
--- a/cpp_linter/clang_tools/clang_tidy.py
+++ b/cpp_linter/clang_tools/clang_tidy.py
@@ -82,6 +82,8 @@ def __init__(
     @property
     def diagnostic_link(self) -> str:
         """Creates a markdown link to the diagnostic documentation."""
+        if self.diagnostic.startswith("clang-diagnostic-"):
+            return self.diagnostic
         link = f"[{self.diagnostic}](https://clang.llvm.org/extra/clang-tidy/checks/"
         return link + "{}/{}.html)".format(*self.diagnostic.split("-", maxsplit=1))