diff --git a/utils.py b/utils.py
index 4387f5dcb..c4dc8f286 100644
--- a/utils.py
+++ b/utils.py
@@ -771,6 +771,7 @@ def updateRecentPostsCache(recentPostsCache: {}, maxRecentPosts: int,
         recentPostsCache['html'][postId] = htmlStr
 
         while len(recentPostsCache['html'].items()) > maxRecentPosts:
+            postId = recentPostsCache['index'][0]
             recentPostsCache['index'].pop(0)
             del recentPostsCache['json'][postId]
             del recentPostsCache['html'][postId]