diff --git a/homeassistant/components/mqtt/entity.py b/homeassistant/components/mqtt/entity.py
index 12b6aac94bf..86fd7cd5824 100644
--- a/homeassistant/components/mqtt/entity.py
+++ b/homeassistant/components/mqtt/entity.py
@@ -140,6 +140,7 @@ MQTT_ATTRIBUTES_BLOCKED = {
     "entity_registry_enabled_default",
     "extra_state_attributes",
     "force_update",
+    "group_entities",
     "icon",
     "friendly_name",
     "should_poll",