diff --git a/app/src/main/java/app/myzel394/alibi/helpers/BatchesFolder.kt b/app/src/main/java/app/myzel394/alibi/helpers/BatchesFolder.kt
index f7257da..c984635 100644
--- a/app/src/main/java/app/myzel394/alibi/helpers/BatchesFolder.kt
+++ b/app/src/main/java/app/myzel394/alibi/helpers/BatchesFolder.kt
@@ -26,7 +26,7 @@ abstract class BatchesFolder(
     abstract val mediaContentUri: Uri
 
     val mediaPrefix
-        get() = MEDIA_RECORDINGS_PREFIX + subfolderName
+        get() = MEDIA_RECORDINGS_PREFIX + subfolderName + "-"
 
     fun initFolders() {
         when (type) {