diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt
index bd7f3d32d..4b6fa86da 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt
@@ -115,7 +115,7 @@ class BgTextConfigDialog : BaseDialogFragment(), FileChooserDialog.CallBack {
         headerView.iv_bg.setImageResource(R.drawable.ic_image)
         headerView.iv_bg.setColorFilter(primaryTextColor)
         headerView.onClick { selectImage() }
-        requireContext().assets.list("bg${File.separator}")?.let {
+        requireContext().assets.list("bg")?.let {
             adapter.setItems(it.toList())
         }
     }