diff --git a/wake/cli/test.py b/wake/cli/test.py
index c5369ccb..aa095b88 100644
--- a/wake/cli/test.py
+++ b/wake/cli/test.py
@@ -104,7 +104,7 @@ def shell_complete(
     type=str,
     help="Path to the shrink log file.",
     is_flag=False,
-    flag_value=0,
+    flag_value="0",
     default=None,
     required=False,
 )
@@ -116,7 +116,7 @@ def shell_complete(
     type=str,
     help="Path of shrank file.",
     is_flag=False,
-    flag_value=0,
+    flag_value="0",
     default=None,
     required=False,
 )
diff --git a/wake/development/json_rpc/communicator.py b/wake/development/json_rpc/communicator.py
index 591b83d0..9b4ef177 100644
--- a/wake/development/json_rpc/communicator.py
+++ b/wake/development/json_rpc/communicator.py
@@ -43,7 +43,6 @@ class JsonRpcCommunicator:
     _protocol: ProtocolAbc
     _request_id: int
     _connected: bool
-    _interrupt_received: bool
 
     def __init__(self, config: WakeConfig, uri: str):
         if uri.startswith(("http://", "https://")):
@@ -57,7 +56,7 @@ def __init__(self, config: WakeConfig, uri: str):
 
         self._request_id = 0
         self._connected = False
-        self._interrupt_received = False
+
     def __enter__(self):
         self._protocol.__enter__()
         self._connected = True