diff --git a/docs/tutorial.rst b/docs/tutorial.rst
index 30cce35..6226aef 100644
--- a/docs/tutorial.rst
+++ b/docs/tutorial.rst
@@ -110,7 +110,7 @@ Creating a :class:`tablib.Dataset` object by importing a pre-existing file is si
 
 This detects what sort of data is being passed in, and uses an appropriate formatter to do the import. So you can import from a variety of different file types.
 
-.. admonition::
+.. admonition:: Source without headers
 
     When the format is :class:`csv <Dataset.csv>`, :class:`tsv <Dataset.tsv>`, :class:`dbf <Dataset.dbf>`, :class:`xls <Dataset.xls>` or :class:`xlsx <Dataset.xlsx>`, and the data source does not have headers, the import should be done as follows ::