diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/can/use/UseCan.kt b/src/main/kotlin/kr/co/vividnext/sodalive/can/use/UseCan.kt
index f2af2e2b..95a2116e 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/can/use/UseCan.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/can/use/UseCan.kt
@@ -36,6 +36,7 @@ data class UseCan(
     var chatRoomId: Long? = null,
     var characterId: Long? = null,
 
+    // ISO 3166-1 alpha-2 국가 코드
     var countryCode: String? = null
 ) : BaseEntity() {
     @ManyToOne(fetch = FetchType.LAZY)