diff --git a/esphome/components/dynamic_lamp/dynamic_lamp.cpp b/esphome/components/dynamic_lamp/dynamic_lamp.cpp
index 52b6292f94..6d11193a21 100644
--- a/esphome/components/dynamic_lamp/dynamic_lamp.cpp
+++ b/esphome/components/dynamic_lamp/dynamic_lamp.cpp
@@ -163,7 +163,7 @@ void DynamicLampComponent::remove_lamp(std::string lamp_name) {
         }
       }
       uint16_t memaddress = 0 + (i * 24);
-      unsigned char[24] empty_lamp;
+      unsigned char empty_lamp[24];
       for (uint8_t m = 0; m < 24; m++) {
         empty_lamp[m] = 0xff;
       }