diff --git a/multisearch_field/monkeypatching.py b/multisearch_field/monkeypatching.py
index 4313926e02..67cf003b64 100644
--- a/multisearch_field/monkeypatching.py
+++ b/multisearch_field/monkeypatching.py
@@ -12,9 +12,9 @@
 def search(self, domain, offset=0, limit=None, order=None, count=False):
     """Override of the Python method to remove the dependency of the unit
     fields"""
-    if self.env["ir.model.access"].check_access_rights("read", raise_exception=False):
-        list_separator = self.env["ir.config_parameter"].get_param(
-            "multi_search_separator"
+    if self.check_access_rights("read"):
+        list_separator = (
+            self.env["ir.config_parameter"].sudo().get_param("multi_search_separator")
         )
     else:
         list_separator = False