diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
index 3e3e92db43bd..3467320f5654 100644
--- a/lib/matplotlib/axes/_axes.py
+++ b/lib/matplotlib/axes/_axes.py
@@ -7681,7 +7681,7 @@ def spy(self, Z, precision=0, marker=None, markersize=None,
             For the marker style, you can pass any `.Line2D` property except
             for *linestyle*:
 
-            %(Line2D)s
+        %(Line2D)s
         """
         if marker is None and markersize is None and hasattr(Z, 'tocoo'):
             marker = 's'