diff --git a/src/django_celery_boost/admin.py b/src/django_celery_boost/admin.py
index 121ceb7..783a017 100644
--- a/src/django_celery_boost/admin.py
+++ b/src/django_celery_boost/admin.py
@@ -109,8 +109,8 @@ def doit(request: "HttpRequest") -> HttpResponseRedirect:
             self,
             request,
             doit,
-            "Do you really want to queue this task?",
-            "Queued",
+            message="Do you really want to queue this task?",
+            success_message="Queued",
             extra_context=ctx,
             description="",
             template=self.queue_template
@@ -146,8 +146,8 @@ def doit(request: "HttpRequest") -> HttpResponseRedirect:
             self,
             request,
             doit,
-            "Do you really want to queue this task?",
-            "Revoked",
+            message="Do you really want to queue this task?",
+            success_message="Revoked",
             extra_context=ctx,
             description="",
             template=[
@@ -182,8 +182,8 @@ def doit(request: "HttpRequest") -> HttpResponseRedirect:
             self,
             request,
             doit,
-            "Do you really want to terminate this task?",
-            None,
+            message="Do you really want to terminate this task?",
+            success_message=None,
             extra_context=ctx,
             description="",
             template=self.terminate_template
diff --git a/src/django_celery_boost/models.py b/src/django_celery_boost/models.py
index fe26721..d89c9d8 100644
--- a/src/django_celery_boost/models.py
+++ b/src/django_celery_boost/models.py
@@ -223,7 +223,7 @@ def celery_queue_info(cls) -> "dict[str, int]":
     def async_result(self) -> "AsyncResult|None":
         """Return the AsyncResult object of the current instance."""
         if self.curr_async_result_id:
-            return AsyncResult(self.curr_async_result_id)
+            return self.celery_app.AsyncResult(self.curr_async_result_id)
         return None
 
     @property