diff --git a/esphome/components/dynamic_lamp/dynamic_lamp.h b/esphome/components/dynamic_lamp/dynamic_lamp.h
index 6f036107f1..09f72a5978 100644
--- a/esphome/components/dynamic_lamp/dynamic_lamp.h
+++ b/esphome/components/dynamic_lamp/dynamic_lamp.h
@@ -28,7 +28,7 @@ struct LinkedOutput {
 
 struct CombinedLamp {
   bool active = false;
-  bool[16] used_outputs;
+  bool used_outputs[16];
 };
 
 class DynamicLamp : public Component {