diff --git a/conversations/impl/src/main/java/org/sakaiproject/conversations/impl/ConversationsServiceImpl.java b/conversations/impl/src/main/java/org/sakaiproject/conversations/impl/ConversationsServiceImpl.java
index 2e169277c5b5..40d4a2904038 100644
--- a/conversations/impl/src/main/java/org/sakaiproject/conversations/impl/ConversationsServiceImpl.java
+++ b/conversations/impl/src/main/java/org/sakaiproject/conversations/impl/ConversationsServiceImpl.java
@@ -2358,7 +2358,7 @@ public Map<String, Object> getSiteStats(String siteId, Instant from, Instant to,
         getEventStats(ConversationsEvents.POST_UPVOTED, siteId, from, to, userIds).forEach(stat -> {
 
             Long current = upvotedPostCountsByUser.getOrDefault(stat.getUserId(), 0L);
-            current = current + stat.getCount();
+            current += stat.getCount();
             upvotedPostCountsByUser.put(stat.getUserId(), current);
         });