diff --git a/esphome/components/mqtt/mqtt_light.cpp b/esphome/components/mqtt/mqtt_light.cpp
index 164b55a9b1..d126fe3012 100644
--- a/esphome/components/mqtt/mqtt_light.cpp
+++ b/esphome/components/mqtt/mqtt_light.cpp
@@ -80,9 +80,10 @@ void MQTTJSONLightComponent::send_discovery(JsonObject root, mqtt::SendDiscovery
   if (this->state_->supports_effects()) {
     root[ESPHOME_F("effect")] = true;
     JsonArray effect_list = root[MQTT_EFFECT_LIST].to<JsonArray>();
-    for (auto *effect : this->state_->get_effects())
+    for (auto *effect : this->state_->get_effects()) {
       // data() is safe as effect names are null-terminated strings from codegen
       effect_list.add(effect->get_name().data());
+    }
     effect_list.add(ESPHOME_F("None"));
   }
 }