diff --git a/direct/src/distributed/ParentMgr.py b/direct/src/distributed/ParentMgr.py
index 6b41a034bc..a979c415ba 100644
--- a/direct/src/distributed/ParentMgr.py
+++ b/direct/src/distributed/ParentMgr.py
@@ -2,6 +2,7 @@
 
 from direct.directnotify import DirectNotifyGlobal
 from direct.showbase.PythonUtil import isDefaultValue
+import types
 
 class ParentMgr:
     # This is now used on the AI as well.
@@ -89,6 +90,10 @@ class ParentMgr:
         if isDefaultValue(token):
             self.notify.error('parent token (for %s) cannot be a default value (%s)' % (repr(parent), token))
 
+        if type(token) is types.IntType:
+            if token > 0xFFFFFFFF:
+                self.notify.error('parent token %s (for %s) is out of uint32 range' % (token, repr(parent)))
+
         self.notify.debug("registering %s as '%s'" % (repr(parent), token))
         self.token2nodepath[token] = parent