diff --git a/app/src/main/java/io/legado/app/utils/ACache.kt b/app/src/main/java/io/legado/app/utils/ACache.kt
index 7549813e8..44f96631c 100644
--- a/app/src/main/java/io/legado/app/utils/ACache.kt
+++ b/app/src/main/java/io/legado/app/utils/ACache.kt
@@ -22,9 +22,9 @@ import kotlin.math.min
 /**
  * 本地缓存
  */
+@Suppress("unused")
 class ACache private constructor(cacheDir: File, max_size: Long, max_count: Int) {
 
-
     companion object {
         const val TIME_HOUR = 60 * 60
         const val TIME_DAY = TIME_HOUR * 24