diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/CategoryImpl.kt b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/CategoryImpl.kt
index 3e59a674e9..af40baecb8 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/CategoryImpl.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/CategoryImpl.kt
@@ -15,7 +15,6 @@ class CategoryImpl : Category {
         if (other == null || javaClass != other.javaClass) return false
 
         val category = other as Category
-
         return name == category.name
     }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/ChapterImpl.kt b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/ChapterImpl.kt
index 167df2b056..a1a2d3f55e 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/ChapterImpl.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/ChapterImpl.kt
@@ -31,10 +31,11 @@ class ChapterImpl : Chapter {
         if (other == null || javaClass != other.javaClass) return false
 
         val chapter = other as Chapter
-        return url == chapter.url
+        if (url != chapter.url) return false
+        return id == chapter.id
     }
 
     override fun hashCode(): Int {
-        return url.hashCode()
+        return url.hashCode() + id.hashCode()
     }
 }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/MangaImpl.kt b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/MangaImpl.kt
index 32cc47309d..61d7879523 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/MangaImpl.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/MangaImpl.kt
@@ -41,11 +41,11 @@ open class MangaImpl : Manga {
         if (other == null || javaClass != other.javaClass) return false
 
         val manga = other as Manga
-
-        return url == manga.url
+        if (url != manga.url) return false
+        return id == manga.id
     }
 
     override fun hashCode(): Int {
-        return url.hashCode()
+        return url.hashCode() + id.hashCode()
     }
 }