diff --git a/esphome/core/entity_base.h b/esphome/core/entity_base.h
index dc961c3d84..5f75872a0f 100644
--- a/esphome/core/entity_base.h
+++ b/esphome/core/entity_base.h
@@ -16,7 +16,7 @@ namespace esphome {
 // Maximum device name length - keep in sync with validate_hostname() in esphome/core/config.py
 static constexpr size_t ESPHOME_DEVICE_NAME_MAX_LEN = 31;
 
-// Maximum friendly name length for entities and sub-devices - keep in sync with cv.Length(max=120) in
+// Maximum friendly name length for entities and sub-devices - keep in sync with FRIENDLY_NAME_MAX_LEN in
 // esphome/core/config.py
 static constexpr size_t ESPHOME_FRIENDLY_NAME_MAX_LEN = 120;