diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index 851aabd479725f..681bb65c649633 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -1457,9 +1457,8 @@ def is_mount(self):
         if not self.exists() or not self.is_dir():
             return False
 
-        parent = Path(self.parent)
         try:
-            parent_dev = parent.stat().st_dev
+            parent_dev = self.parent.stat().st_dev
         except OSError:
             return False
 
@@ -1467,7 +1466,7 @@ def is_mount(self):
         if dev != parent_dev:
             return True
         ino = self.stat().st_ino
-        parent_ino = parent.stat().st_ino
+        parent_ino = self.parent.stat().st_ino
         return ino == parent_ino
 
     def is_symlink(self):