diff --git a/AnkiDroid/kotlinMigration.gradle b/AnkiDroid/kotlinMigration.gradle
index a2e505b236..cdb69c6ef8 100644
--- a/AnkiDroid/kotlinMigration.gradle
+++ b/AnkiDroid/kotlinMigration.gradle
@@ -43,7 +43,7 @@ permission notice:
 // Example of class name: "/com/ichi2/anki/UIUtils.kt"
 // Ensure that it starts with '/' (slash)
 def source = Source.MAIN
-def className = ""
+def className = "/com/ichi2/libanki/CollectionGetter.kt"
 
 enum Source {
     MAIN("/src/main/java"),
diff --git a/AnkiDroid/src/main/java/com/ichi2/libanki/CollectionGetter.java b/AnkiDroid/src/main/java/com/ichi2/libanki/CollectionGetter.kt
similarity index 100%
rename from AnkiDroid/src/main/java/com/ichi2/libanki/CollectionGetter.java
rename to AnkiDroid/src/main/java/com/ichi2/libanki/CollectionGetter.kt