diff --git a/Comics/items.py b/Comics/items.py
index 6d0c271..6ac3e90 100644
--- a/Comics/items.py
+++ b/Comics/items.py
@@ -98,8 +98,8 @@ class ImagesItem(Item):
 
 def serializer_info_writer(value):
     list_value = []
-    str(value).replace("&", " ")
-    for v in str(value).split(" "):
+    value = str(value).replace("&", " ")
+    for v in set(str(value).split(" ")):
         list_value.append(v)
     return ",".join(list_value)
 
@@ -160,5 +160,4 @@ class ComicInfoItem(Item):
     AgeRating = Field(info='age_rating')#","年龄分级",False]
     #Pages = Field(info='images_name', serializer=serializer_info_images_completed)#","页码",True]
     Pages = Field(info='images', serializer=serializer_info_images)#","页码",True]
-    # ComicInfo.xml and ComicChapter.json end
-
+    # ComicInfo.xml and ComicChapter.json end
\ No newline at end of file