diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
index 6cdb1294ebca..533a206d54eb 100644
--- a/lib/matplotlib/ticker.py
+++ b/lib/matplotlib/ticker.py
@@ -1833,14 +1833,14 @@ class MaxNLocator(Locator):
 
     def __init__(self, *args, **kwargs):
         """
-        Keyword args:
-
-        *nbins*
+        Parameters
+        ----------
+        nbins : int or 'auto', optional, default: 10
             Maximum number of intervals; one less than max number of
             ticks.  If the string `'auto'`, the number of bins will be
             automatically determined based on the length of the axis.
 
-        *steps*
+        steps: array-like, optional
             Sequence of nice numbers starting with 1 and ending with 10;
             e.g., [1, 2, 4, 5, 10], where the values are acceptable
             tick multiples.  i.e. for the example, 20, 40, 60 would be
@@ -1848,17 +1848,15 @@ def __init__(self, *args, **kwargs):
             they are multiples of 2.  However, 30, 60, 90 would not
             be allowed because 3 does not appear in the list of steps.
 
-        *integer*
+        integer : bool, optional, default: False
             If True, ticks will take only integer values, provided
             at least `min_n_ticks` integers are found within the
             view limits.
 
-        *symmetric*
-            If True, autoscaling will result in a range symmetric
-            about zero.
+        symmetric : bool, optional, default: False
+            If True, autoscaling will result in a range symmetric about zero.
 
-        *prune*
-            ['lower' | 'upper' | 'both' | None]
+        prune : {'lower', 'upper', 'both', None}, optional, default: None
             Remove edge ticks -- useful for stacked or ganged plots where
             the upper tick of one axes overlaps with the lower tick of the
             axes above it, primarily when :rc:`axes.autolimit_mode` is
@@ -1867,9 +1865,9 @@ def __init__(self, *args, **kwargs):
             removed.  If ``prune == 'both'``, the largest and smallest ticks
             will be removed.  If ``prune == None``, no ticks will be removed.
 
-        *min_n_ticks*
-            Relax `nbins` and `integer` constraints if necessary to
-            obtain this minimum number of ticks.
+        min_n_ticks : int, optional, default: 2
+            Relax *nbins* and *integer* constraints if necessary to obtain
+            this minimum number of ticks.
 
         """
         if args: