diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupExport.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupExport.kt
index 159a9ead..996b83fc 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupExport.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupExport.kt
@@ -68,7 +68,7 @@ object ProtoBackupExport : ProtoBackupBase() {
                 mangaRow[MangaTable.genre]?.split(", ") ?: emptyList(),
                 MangaStatus.valueOf(mangaRow[MangaTable.status]).value,
                 mangaRow[MangaTable.thumbnail_url],
-                0, // not supported in Tachidesk
+                mangaRow[MangaTable.inLibraryAt],
                 0, // not supported in Tachidesk
             )
 
@@ -84,10 +84,10 @@ object ProtoBackupExport : ProtoBackupBase() {
                         it.read,
                         it.bookmarked,
                         it.lastPageRead,
-                        0, // not supported in Tachidesk
+                        it.fetchedAt,
                         it.uploadDate,
                         it.chapterNumber,
-                        it.index,
+                        chapters.size - it.index,
                     )
                 }
             }
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupImport.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupImport.kt
index 73d8c98a..965a54e5 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupImport.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/backup/proto/ProtoBackupImport.kt
@@ -148,6 +148,8 @@ object ProtoBackupImport : ProtoBackupBase() {
                     it[initialized] = manga.description != null
 
                     it[inLibrary] = manga.favorite
+
+                    it[inLibraryAt] = manga.date_added
                 }.value
 
                 // insert chapter data
@@ -166,6 +168,8 @@ object ProtoBackupImport : ProtoBackupBase() {
                         it[isRead] = chapter.read
                         it[lastPageRead] = chapter.last_page_read
                         it[isBookmarked] = chapter.bookmark
+
+                        it[fetchedAt] = chapter.date_fetch
                     }
                 }