diff --git a/lib/matplotlib/lines.py b/lib/matplotlib/lines.py
index 18a1d8186a8..0ded319aacf 100644
--- a/lib/matplotlib/lines.py
+++ b/lib/matplotlib/lines.py
@@ -1075,7 +1075,7 @@ def set_linestyle(self, ls):
 
         Parameters
         ----------
-        ls : { '-',  '--', '-.', ':'} and more see description
+        ls : { ``'-'``,  ``'--'``, ``'-.'``, ``':'``} and more see description
             The line style.
         """
         if not is_string_like(ls):