diff --git a/app/src/main/java/eu/kanade/tachiyomi/util/chapter/ChapterSourceSync.kt b/app/src/main/java/eu/kanade/tachiyomi/util/chapter/ChapterSourceSync.kt
index ab67e3aa40..5c340064e7 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/util/chapter/ChapterSourceSync.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/util/chapter/ChapterSourceSync.kt
@@ -137,7 +137,7 @@ suspend fun syncChaptersWithSource(
     // Date fetch is set in such a way that the upper ones will have bigger value than the lower ones
     // Sources MUST return the chapters from most to less recent, which is common.
     var itemCount = toAdd.size
-    var updatedToAdd = toAdd.map { toAddItem ->
+    var updatedToAdd = toAdd.distinctBy { it.url }.map { toAddItem ->
         val chapter: Chapter = toAddItem.copy()
 
         chapter.date_fetch = now + itemCount--