diff --git a/homeassistant/components/modbus/base_platform.py b/homeassistant/components/modbus/base_platform.py
index c64ef95c163..5c8816dd74e 100644
--- a/homeassistant/components/modbus/base_platform.py
+++ b/homeassistant/components/modbus/base_platform.py
@@ -67,7 +67,6 @@ from .const import (
 )
 from .modbus import ModbusHub
 
-PARALLEL_UPDATES = 1
 _LOGGER = logging.getLogger(__name__)