diff --git a/patacrep/content/__init__.py b/patacrep/content/__init__.py
index 85f6b7a4..a2268ee7 100755
--- a/patacrep/content/__init__.py
+++ b/patacrep/content/__init__.py
@@ -223,7 +223,7 @@ def render(context, content):
         rendered += elem.render(context) + EOL
         previous = elem
 
-    if isinstance(last, ContentItem):
+    if last is not None:
         rendered += last.end_block(context) + EOL
 
     return rendered