diff --git a/lib/matplotlib/lines.py b/lib/matplotlib/lines.py
index 057a03291a25..4cd2f4827504 100644
--- a/lib/matplotlib/lines.py
+++ b/lib/matplotlib/lines.py
@@ -544,8 +544,8 @@ def set_markevery(self, every):
 
         Parameters
         ----------
-        every: None | int | length-2 tuple of int | slice | list/array of int |
-        float | length-2 tuple of float
+        every: None | int | length-2 tuple of int | slice | list/array of int \
+| float | length-2 tuple of float
             Which markers to plot.
 
             - every=None, every point will be plotted.