diff --git a/volatility3/framework/plugins/windows/pstree.py b/volatility3/framework/plugins/windows/pstree.py
index 3a5e1c878..373c555f6 100644
--- a/volatility3/framework/plugins/windows/pstree.py
+++ b/volatility3/framework/plugins/windows/pstree.py
@@ -5,7 +5,7 @@ import datetime
 import logging
 from typing import Callable, Dict, Set, Tuple
 
-from volatility3.framework import objects, interfaces, renderers, exceptions
+from volatility3.framework import interfaces, renderers, exceptions
 from volatility3.framework.configuration import requirements
 from volatility3.framework.renderers import format_hints
 from volatility3.plugins.windows import pslist
@@ -20,12 +20,10 @@ class PsTree(interfaces.plugins.PluginInterface):
 
     def __init__(self, *args, **kwargs) -> None:
         super().__init__(*args, **kwargs)
-        self._processes: Dict[
-            objects.Pointer, Tuple[interfaces.objects.ObjectInterface, int]
-        ] = {}
-        self._levels: Dict[objects.Pointer, int] = {}
-        self._children: Dict[objects.Pointer, Set[int]] = {}
-        self._ancestors: Set[objects.Pointer] = set([])
+        self._processes: Dict[int, Tuple[interfaces.objects.ObjectInterface, int]] = {}
+        self._levels: Dict[int, int] = {}
+        self._children: Dict[int, Set[int]] = {}
+        self._ancestors: Set[int] = set([])
 
     @classmethod
     def get_requirements(cls):
@@ -54,7 +52,7 @@ class PsTree(interfaces.plugins.PluginInterface):
 
     def find_level(
         self,
-        pid: objects.Pointer,
+        pid: int,
         filter_func: Callable[
             [interfaces.objects.ObjectInterface], bool
         ] = lambda _: False,
@@ -106,7 +104,7 @@ class PsTree(interfaces.plugins.PluginInterface):
 
         process_pids = set([])
 
-        def yield_processes(pid, descendant: bool = False):
+        def yield_processes(pid: int, descendant: bool = False):
             if pid in process_pids:
                 vollog.debug(f"Pid cycle: already processed pid {pid}")
                 return None