diff --git a/src/main/java/me/kavin/piped/ServerLauncher.java b/src/main/java/me/kavin/piped/ServerLauncher.java
index 6af8613..01a959e 100644
--- a/src/main/java/me/kavin/piped/ServerLauncher.java
+++ b/src/main/java/me/kavin/piped/ServerLauncher.java
@@ -332,7 +332,9 @@ public class ServerLauncher extends MultithreadedHttpServerLauncher {
                         var json = Constants.mapper.readTree(request.loadBody().getResult().asArray());
                         var playlistId = json.get("playlistId").textValue();
                         var videoId = json.get("videoId").textValue();
-                        return getJsonResponse(ResponseHelper.addToPlaylistResponse(request.getHeader(AUTHORIZATION), playlistId, videoId), "private");
+                        var allowDupicatesValue = json.get("allowDuplicates");
+                        var allowDuplicates = allowDupicatesValue == null ? true : allowDupicatesValue.booleanValue();
+                        return getJsonResponse(ResponseHelper.addToPlaylistResponse(request.getHeader(AUTHORIZATION), playlistId, videoId, allowDuplicates), "private");
                     } catch (Exception e) {
                         return getErrorResponse(e, request.getPath());
                     }
diff --git a/src/main/java/me/kavin/piped/utils/ResponseHelper.java b/src/main/java/me/kavin/piped/utils/ResponseHelper.java
index 4b3e1c4..9217609 100644
--- a/src/main/java/me/kavin/piped/utils/ResponseHelper.java
+++ b/src/main/java/me/kavin/piped/utils/ResponseHelper.java
@@ -1390,7 +1390,7 @@ public class ResponseHelper {
         );
     }
 
-    public static byte[] addToPlaylistResponse(String session, String playlistId, String videoId) throws IOException, ExtractionException {
+    public static byte[] addToPlaylistResponse(String session, String playlistId, String videoId, Boolean allowDuplicates) throws IOException, ExtractionException {
 
         if (StringUtils.isBlank(playlistId) || StringUtils.isBlank(videoId))
             return mapper.writeValueAsBytes(new InvalidRequestResponse());
@@ -1413,10 +1413,14 @@ public class ResponseHelper {
                 return mapper.writeValueAsBytes(mapper.createObjectNode()
                         .put("error", "Playlist not found"));
 
-            for (PlaylistVideo video : playlist.getVideos()) {
-                if (video.getId() == videoId) return mapper.writeValueAsBytes(mapper.createObjectNode()
-                        .put("error", "Playlist already contains the video"));
-            };
+            if (!allowDuplicates) {
+                for (PlaylistVideo video : playlist.getVideos()) {
+                    if (video.getId() == videoId)
+                        return mapper.writeValueAsBytes(mapper.createObjectNode()
+                                .put("error", "The playlist already contains the video"));
+                }
+                ;
+            }
 
             if (playlist.getOwner().getId() != user.getId())
                 return mapper.writeValueAsBytes(mapper.createObjectNode()