diff --git a/lib/matplotlib/image.py b/lib/matplotlib/image.py
index 33957b6a60ea..beeb3543bb9c 100644
--- a/lib/matplotlib/image.py
+++ b/lib/matplotlib/image.py
@@ -1008,6 +1008,8 @@ def format_cursor_data(self, data):
 
 
 class NonUniformImage(AxesImage):
+    mouseover = False  # This class still needs its own get_cursor_data impl.
+
     def __init__(self, ax, *, interpolation='nearest', **kwargs):
         """
         Parameters