diff --git a/data/src/commonMain/sqldelight/tachiyomi/data/mangas.sq b/data/src/commonMain/sqldelight/tachiyomi/data/mangas.sq
index 548bdf7b9c..ef8dfc2cd6 100644
--- a/data/src/commonMain/sqldelight/tachiyomi/data/mangas.sq
+++ b/data/src/commonMain/sqldelight/tachiyomi/data/mangas.sq
@@ -43,7 +43,7 @@ WHERE _id = :mangaId;
 findDuplicateFavorite:
 SELECT *
 FROM mangas
-WHERE favorite = 1 AND lower(title) = :title AND source = :source;
+WHERE favorite = 1 AND lower(title) = :title AND source != :source;
 
 findFavorites:
 SELECT *