diff --git a/src/main/kotlin/com/restapi/domain/db.kt b/src/main/kotlin/com/restapi/domain/db.kt
index cf89bfa..b140e97 100644
--- a/src/main/kotlin/com/restapi/domain/db.kt
+++ b/src/main/kotlin/com/restapi/domain/db.kt
@@ -180,7 +180,7 @@ object Session {
         val s = database
             .sqlQuery("SELECT nextval('${seqName(entity)}');")
             .findOne()?.getLong("nextval") ?: throw DataNotFoundException
-        return String.format("%s-%s", entity, "$s".padStart(10, '0'))
+        return "$entity-${"$s".padStart(10, '0')}"
     }
 
     val redis = JedisPooled(appConfig.redisUri().getOrDefault("redis://localhost:6739/0"))