diff --git a/app/src/main/java/com/github/libretube/db/DatabaseHolder.kt b/app/src/main/java/com/github/libretube/db/DatabaseHolder.kt
index 1ddd1410d..7f3c0a641 100644
--- a/app/src/main/java/com/github/libretube/db/DatabaseHolder.kt
+++ b/app/src/main/java/com/github/libretube/db/DatabaseHolder.kt
@@ -9,40 +9,36 @@ object DatabaseHolder {
     private const val DATABASE_NAME = "LibreTubeDatabase"
 
     private val MIGRATION_11_12 = object : Migration(11, 12) {
-        override fun migrate(database: SupportSQLiteDatabase) {
-            database.execSQL(
-                "ALTER TABLE 'localPlaylist' ADD COLUMN 'description' TEXT DEFAULT NULL"
-            )
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL("ALTER TABLE 'localPlaylist' ADD COLUMN 'description' TEXT DEFAULT NULL")
         }
     }
 
     private val MIGRATION_12_13 = object : Migration(12, 13) {
-        override fun migrate(database: SupportSQLiteDatabase) {
-            database.execSQL(
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL(
                 "ALTER TABLE 'playlistBookmark' ADD COLUMN 'videos' INTEGER NOT NULL DEFAULT 0"
             )
         }
     }
 
     private val MIGRATION_13_14 = object : Migration(13, 14) {
-        override fun migrate(database: SupportSQLiteDatabase) {
-            database.execSQL(
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL(
                 "ALTER TABLE 'subscriptionGroups' ADD COLUMN 'index' INTEGER NOT NULL DEFAULT 0"
             )
         }
     }
 
     private val MIGRATION_14_15 = object : Migration(14, 15) {
-        override fun migrate(database: SupportSQLiteDatabase) {
-            database.execSQL(
-                "ALTER TABLE 'downloadItem' ADD COLUMN 'language' TEXT DEFAULT NULL"
-            )
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL("ALTER TABLE 'downloadItem' ADD COLUMN 'language' TEXT DEFAULT NULL")
         }
     }
 
     private val MIGRATION_15_16 = object : Migration(15, 16) {
-        override fun migrate(database: SupportSQLiteDatabase) {
-            database.execSQL(
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL(
                 "ALTER TABLE 'watchHistoryItem' ADD COLUMN 'isShort' INTEGER NOT NULL DEFAULT 0"
             )
         }