diff --git a/app/src/main/java/com/hippo/ehviewer/client/data/ListUrlBuilder.java b/app/src/main/java/com/hippo/ehviewer/client/data/ListUrlBuilder.kt
similarity index 100%
rename from app/src/main/java/com/hippo/ehviewer/client/data/ListUrlBuilder.java
rename to app/src/main/java/com/hippo/ehviewer/client/data/ListUrlBuilder.kt
diff --git a/app/src/main/java/com/hippo/ehviewer/widget/GalleryInfoContentHelper.java b/app/src/main/java/com/hippo/ehviewer/widget/GalleryInfoContentHelper.kt
similarity index 100%
rename from app/src/main/java/com/hippo/ehviewer/widget/GalleryInfoContentHelper.java
rename to app/src/main/java/com/hippo/ehviewer/widget/GalleryInfoContentHelper.kt