diff --git a/pandas/io/formats/format.py b/pandas/io/formats/format.py
index dbfac3b02643f..097e508d4889a 100644
--- a/pandas/io/formats/format.py
+++ b/pandas/io/formats/format.py
@@ -114,7 +114,7 @@
         columns : array-like, optional, default None
             The subset of columns to write. Writes all columns by default.
         col_space : %(col_space_type)s, optional
-            %(col_space)s.
+            %(col_space)s
         header : %(header_type)s, optional
             %(header)s.
         index : bool, optional, default True