diff --git a/core/src/main/java/org/kiwix/kiwixmobile/core/data/KiwixRoomDatabase.kt b/core/src/main/java/org/kiwix/kiwixmobile/core/data/KiwixRoomDatabase.kt
index 29cae2465..f71f3e852 100644
--- a/core/src/main/java/org/kiwix/kiwixmobile/core/data/KiwixRoomDatabase.kt
+++ b/core/src/main/java/org/kiwix/kiwixmobile/core/data/KiwixRoomDatabase.kt
@@ -227,12 +227,12 @@ abstract class KiwixRoomDatabase : RoomDatabase() {
                 id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
                 downloadId INTEGER NOT NULL,
                 file TEXT,
-                etaInMilliSeconds INTEGER NOT NULL,
-                bytesDownloaded INTEGER NOT NULL,
-                totalSizeOfDownload INTEGER NOT NULL,
-                status INTEGER NOT NULL,
-                error INTEGER NOT NULL,
-                progress INTEGER NOT NULL,
+                etaInMilliSeconds INTEGER NOT NULL DEFAULT -1,
+                bytesDownloaded INTEGER NOT NULL DEFAULT -1,
+                totalSizeOfDownload INTEGER NOT NULL DEFAULT -1,
+                status TEXT NOT NULL 'NONE',
+                error TEXT NOT NULL 'NONE',
+                progress INTEGER NOT NULL DEFAULT -1,
                 bookId TEXT NOT NULL,
                 title TEXT NOT NULL,
                 description TEXT,