diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterService.kt
index ea0f5c1..1c23587 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterService.kt
@@ -45,10 +45,10 @@ class ChatCharacterService(
     @Transactional(readOnly = true)
     @Cacheable(
         cacheNames = ["popularCharacters_24h"],
-        key = "T(kr.co.vividnext.sodalive.chat.character.service.RankingWindowCalculator).now('popular-chat-character').cacheKey"
+        key = "T(kr.co.vividnext.sodalive.chat.character.service.RankingWindowCalculator).now('popular-character').cacheKey"
     )
     fun getPopularCharacters(limit: Long = 20): List<Character> {
-        val window = RankingWindowCalculator.now("popular-chat-character")
+        val window = RankingWindowCalculator.now("popular-character")
         val topIds = popularCharacterQuery.findPopularCharacterIds(window.windowStart, window.nextBoundary, limit)
         val list = loadCharactersInOrder(topIds)
         return list.map {
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/RankingWindowCalculator.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/RankingWindowCalculator.kt
index 56dad23..b5ba168 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/RankingWindowCalculator.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/RankingWindowCalculator.kt
@@ -20,7 +20,7 @@ object RankingWindowCalculator {
     private const val BOUNDARY_HOUR = 20 // 20:00:00 UTC
 
     @JvmStatic
-    fun now(prefix: String = "popular-chat-character"): RankingWindow {
+    fun now(prefix: String = "popular-character"): RankingWindow {
         val now = ZonedDateTime.now(ZONE)
         val todayBoundary = now.toLocalDate().atTime(BOUNDARY_HOUR, 0, 0).atZone(ZONE)