diff --git a/homeassistant/components/mysensors/const.py b/homeassistant/components/mysensors/const.py
index a87b78b549e..05e19d452a2 100644
--- a/homeassistant/components/mysensors/const.py
+++ b/homeassistant/components/mysensors/const.py
@@ -33,7 +33,7 @@ SCHEMA: Final = "schema"
 CHILD_CALLBACK: str = "mysensors_child_callback_{}_{}_{}_{}"
 NODE_CALLBACK: str = "mysensors_node_callback_{}_{}"
 MYSENSORS_DISCOVERY: str = "mysensors_discovery_{}_{}"
-MYSENSORS_NODE_DISCOVERY: str = "mysensors_node_discovery"
+MYSENSORS_NODE_DISCOVERY: str = "mysensors_node_discovery_{}"
 TYPE: Final = "type"
 UPDATE_DELAY: float = 0.1
 
diff --git a/homeassistant/components/mysensors/helpers.py b/homeassistant/components/mysensors/helpers.py
index 9ed41dfe4e9..3c9b841bdb3 100644
--- a/homeassistant/components/mysensors/helpers.py
+++ b/homeassistant/components/mysensors/helpers.py
@@ -70,7 +70,7 @@ def discover_mysensors_node(
         discovered_nodes.add(node_id)
         async_dispatcher_send(
             hass,
-            MYSENSORS_NODE_DISCOVERY,
+            MYSENSORS_NODE_DISCOVERY.format(gateway_id),
             {
                 ATTR_GATEWAY_ID: gateway_id,
                 ATTR_NODE_ID: node_id,
diff --git a/homeassistant/components/mysensors/sensor.py b/homeassistant/components/mysensors/sensor.py
index 3793bed8af2..c6fee7ba52a 100644
--- a/homeassistant/components/mysensors/sensor.py
+++ b/homeassistant/components/mysensors/sensor.py
@@ -244,7 +244,7 @@ async def async_setup_entry(
     config_entry.async_on_unload(
         async_dispatcher_connect(
             hass,
-            MYSENSORS_NODE_DISCOVERY,
+            MYSENSORS_NODE_DISCOVERY.format(config_entry.entry_id),
             async_node_discover,
         ),
     )