diff --git a/pydoctor/templatewriter/summary.py b/pydoctor/templatewriter/summary.py
index 64f1deadc..c0ebec786 100644
--- a/pydoctor/templatewriter/summary.py
+++ b/pydoctor/templatewriter/summary.py
@@ -485,7 +485,7 @@ def helpcontent(self, request: object, tag: Tag) -> Tag:
         parsed = restructuredtext.parse_docstring(dedent(self.RST_SOURCE_TEMPLATE.substitute(
             kind_names=', '.join(f'"{k.name}"' for k in model.DocumentableKind)
         )), errs)
-        print ([e.descr() for e in errs])
+        assert not errs
         return parsed.to_stan(NotFoundLinker())
 
 def summaryPages(system: model.System) -> Iterable[Type[Page]]: