diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/content/series/CreatorAdminContentSeriesService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/content/series/CreatorAdminContentSeriesService.kt
index b60a799..73ff878 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/content/series/CreatorAdminContentSeriesService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/content/series/CreatorAdminContentSeriesService.kt
@@ -50,6 +50,7 @@ class CreatorAdminContentSeriesService(
             .split(" ")
             .map { it.trim() }
             .filter { it.isNotBlank() }
+            .toSet()
             .map {
                 val tag = if (!it.startsWith("#")) {
                     "#$it"
@@ -67,7 +68,7 @@ class CreatorAdminContentSeriesService(
                 seriesKeyword
             }
 
-        series.keywordList.addAll(keywords.toSet())
+        series.keywordList.addAll(keywords)
 
         val metadata = ObjectMetadata()
         metadata.contentLength = coverImage.size