Damn you Sphinx
diff --git a/jinja2/ext.py b/jinja2/ext.py
index ceb3895..5ba6efd 100644
--- a/jinja2/ext.py
+++ b/jinja2/ext.py
@@ -103,7 +103,9 @@
 
     def attr(self, name, lineno=None):
         """Return an attribute node for the current extension.  This is useful
-        to pass constants on extensions to generated template code::
+        to pass constants on extensions to generated template code.
+
+        ::
 
             self.attr('_my_attribute', lineno=lineno)
         """