diff --git a/frappe/desk/treeview.py b/frappe/desk/treeview.py
index b74582edc8..6967143602 100644
--- a/frappe/desk/treeview.py
+++ b/frappe/desk/treeview.py
@@ -43,7 +43,7 @@ def get_children(doctype, parent="", include_disabled=False, **filters):
 
 
 def _get_children(doctype, parent="", ignore_permissions=False, include_disabled=False):
-	parent_field = "parent_" + doctype.lower().replace(" ", "_")
+	parent_field = "parent_" + frappe.scrub(doctype)
 	filters = [[f"ifnull(`{parent_field}`,'')", "=", parent], ["docstatus", "<", 2]]
 	if frappe.db.has_column(doctype, "disabled") and not include_disabled:
 		filters.append(["disabled", "=", False])
@@ -75,7 +75,7 @@ def make_tree_args(**kwarg):
 	kwarg.pop("cmd", None)
 
 	doctype = kwarg["doctype"]
-	parent_field = "parent_" + doctype.lower().replace(" ", "_")
+	parent_field = "parent_" + frappe.scrub(doctype)
 
 	if kwarg["is_root"] == "false":
 		kwarg["is_root"] = False
diff --git a/frappe/public/js/frappe/views/treeview.js b/frappe/public/js/frappe/views/treeview.js
index bbf35104d1..5130863f93 100644
--- a/frappe/public/js/frappe/views/treeview.js
+++ b/frappe/public/js/frappe/views/treeview.js
@@ -352,7 +352,8 @@ frappe.views.TreeView = class TreeView {
 		});
 
 		var args = $.extend({}, me.args);
-		args["parent_" + me.doctype.toLowerCase().replace(/ /g, "_")] = me.args["parent"];
+		args["parent_" + me.doctype.toLowerCase().replace(/ /g, "_").replace(/-/g, "_")] =
+			me.args["parent"];
 
 		d.set_value("is_group", 0);
 		d.set_values(args);