diff --git management/univention-directory-manager-modules/modules/univention/admin/handlers/__init__.py management/univention-directory-manager-modules/modules/univention/admin/handlers/__init__.py
index 7190d24f3f..b3fe0f9ba4 100644
--- management/univention-directory-manager-modules/modules/univention/admin/handlers/__init__.py
+++ management/univention-directory-manager-modules/modules/univention/admin/handlers/__init__.py
@@ -1826,7 +1826,10 @@ class simpleLdap(object):
 			filter.value = mapping.mapValue(key, filter.value)
 
 		if isinstance(filter.value, (list, tuple)) and filter.value:
-			# complex syntax
+			# complex syntax or multivalue
+			filter.value = filter.value[0]
+		if isinstance(filter.value, (list, tuple)) and filter.value:
+			# complex syntax and multivalue
 			filter.value = filter.value[0]
 
 	@classmethod