diff --git a/mempalace/mcp_server.py b/mempalace/mcp_server.py
index fdf2b2c..30de761 100644
--- a/mempalace/mcp_server.py
+++ b/mempalace/mcp_server.py
@@ -1370,6 +1370,7 @@ def handle_request(request):
                     "error": {"code": -32602, "message": f"Invalid value for parameter '{key}'"},
                 }
         try:
+            tool_args.pop("wait_for_previous", None)
             result = TOOLS[tool_name]["handler"](**tool_args)
             return {
                 "jsonrpc": "2.0",