diff --git a/data/src/main/sqldelight/tachiyomi/data/mangas.sq b/data/src/main/sqldelight/tachiyomi/data/mangas.sq
index 58f35f48d..317ba2e32 100644
--- a/data/src/main/sqldelight/tachiyomi/data/mangas.sq
+++ b/data/src/main/sqldelight/tachiyomi/data/mangas.sq
@@ -120,7 +120,7 @@ AND source = :sourceId;
 getDuplicateLibraryManga:
 WITH
 track_dupes AS (
-    SELECT S2.manga_id
+    SELECT DISTINCT S2.manga_id
     FROM manga_sync S1
     INNER JOIN manga_sync S2
     ON S1.sync_id = S2.sync_id