diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/categories/edit/FavouritesCategoryEditActivity.kt b/app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/categories/edit/FavouritesCategoryEditActivity.kt
index 6704aaaf5..c309c2df9 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/categories/edit/FavouritesCategoryEditActivity.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/categories/edit/FavouritesCategoryEditActivity.kt
@@ -68,7 +68,9 @@ class FavouritesCategoryEditActivity :
 
 	override fun onRestoreInstanceState(savedInstanceState: Bundle) {
 		super.onRestoreInstanceState(savedInstanceState)
-		selectedSortOrder = savedInstanceState.getSerializableCompat(KEY_SORT_ORDER)
+		savedInstanceState.getSerializableCompat<ListSortOrder>(KEY_SORT_ORDER)?.let { 
+		    selectedSortOrder = it
+		}
 	}
 
 	override fun onClick(v: View) {