diff --git a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/Main.kt b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/Main.kt
index 65b1cf6..d3c2976 100644
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/Main.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/Main.kt
@@ -287,7 +287,7 @@ data class DiscordGuildListAPI(
 data class GuildRole(
     val id: String,
     val name: String,
-    val color: String,
+    val color: Int,
     val mentionable: Boolean,
 )