diff --git a/cubicweb_elasticsearch/hooks.py b/cubicweb_elasticsearch/hooks.py
index 1c4e7b35e611717b8167756ac269d365500c8597_Y3ViaWN3ZWJfZWxhc3RpY3NlYXJjaC9ob29rcy5weQ==..46ca26089efb0df1ed6114f645e3540033b5e7f9_Y3ViaWN3ZWJfZWxhc3RpY3NlYXJjaC9ob29rcy5weQ== 100644
--- a/cubicweb_elasticsearch/hooks.py
+++ b/cubicweb_elasticsearch/hooks.py
@@ -66,7 +66,7 @@
 class IndexEsOperation(hook.DataOperationMixIn, hook.Operation):
 
     @staticmethod
-    def delete_doc(self, es, **kwargs):
+    def delete_doc(es, **kwargs):
         try:
             # TODO option for async ?
             es.delete(**kwargs)