diff --git a/esds/node.py b/esds/node.py
index 1cd5a1a..7fc62dc 100644
--- a/esds/node.py
+++ b/esds/node.py
@@ -200,9 +200,7 @@ class Node:
         ack=None
         while True:
             ack=self.rqueue.get() # Wait for simulator acknowledgments
-            if ack[0] == "plugin_notify":
-                self.plugin_notify(ack[1],ack[2]) # TODO: what is ack_types received before "plugin_notify" ?
-            elif ack[0] not in ack_types:
+            if ack[0] not in ack_types:
                 ack_buffer.append(ack)
             else:
                 break