diff --git a/mapper.js b/mapper.js
index 9c08bc7..8201f38 100644
--- a/mapper.js
+++ b/mapper.js
@@ -307,7 +307,7 @@ async function mapAniListToAnicrush(anilistId) {
             name: ep.name,
             name_english: ep.name_english,
             is_filler: ep.is_filler,
-            id: `${bestMatch.id}&episode=${ep.number}`
+            id: `${bestMatch.id}?episode=${ep.number}`
         }));
 
         return {
@@ -342,4 +342,4 @@ async function mapAniListToAnicrush(anilistId) {
 module.exports = {
     mapAniListToAnicrush,
     getCommonHeaders
-}; 
\ No newline at end of file
+};