diff --git a/lib/matplotlib/collections.py b/lib/matplotlib/collections.py
index c31c52c7b476..b13a8868e758 100644
--- a/lib/matplotlib/collections.py
+++ b/lib/matplotlib/collections.py
@@ -2015,6 +2015,7 @@ def __init__(self, *args, **kwargs):
         # super init delayed after own init because array kwarg requires
         # self._coordinates and self._shading
         super().__init__(**kwargs)
+        self.mouseover = False
 
     # Only needed during signature deprecation
     __init__.__signature__ = inspect.signature(