diff --git a/Riot/Categories/MXEvent.swift b/Riot/Categories/MXEvent.swift
index 5ba0c1c7d..5b1a85263 100644
--- a/Riot/Categories/MXEvent.swift
+++ b/Riot/Categories/MXEvent.swift
@@ -26,4 +26,24 @@ extension MXEvent {
         }
         return MXMessageType(identifier: messageTypeString)
     }
+
+    /// Lightweight version of the receiver, in which reply-specific keys are stripped. Returns the same event with the receiver if not a reply event.
+    /// Should be used only to update formatting behavior.
+    var replyStrippedVersion: MXEvent {
+        if self.isReply(), let newMessage = self.copy() as? MXEvent {
+            var jsonDict = newMessage.isEncrypted ? newMessage.clear?.jsonDictionary() : newMessage.jsonDictionary()
+            if var content = jsonDict?["content"] as? [String: Any] {
+                content.removeValue(forKey: "format")
+                content.removeValue(forKey: "formatted_body")
+                content.removeValue(forKey: kMXEventRelationRelatesToKey)
+                if let replyText = MXReplyEventParser().parse(newMessage)?.bodyParts.replyText {
+                    content["body"] = replyText
+                }
+                jsonDict?["content"] = content
+            }
+            return MXEvent(fromJSON: jsonDict)
+        } else {
+            return self
+        }
+    }
 }
diff --git a/Riot/Modules/Room/TimelineDecorations/Threads/Summary/ThreadSummaryView.swift b/Riot/Modules/Room/TimelineDecorations/Threads/Summary/ThreadSummaryView.swift
index a57888aeb..61489868b 100644
--- a/Riot/Modules/Room/TimelineDecorations/Threads/Summary/ThreadSummaryView.swift
+++ b/Riot/Modules/Room/TimelineDecorations/Threads/Summary/ThreadSummaryView.swift
@@ -115,7 +115,7 @@ class ThreadSummaryView: UIView {
         room.state { [weak self] roomState in
             guard let self = self else { return }
             let formatterError = UnsafeMutablePointer<MXKEventFormatterError>.allocate(capacity: 1)
-            let lastMessageText = eventFormatter.attributedString(from: lastMessage,
+            let lastMessageText = eventFormatter.attributedString(from: lastMessage.replyStrippedVersion,
                                                                   with: roomState,
                                                                   error: formatterError)
             
diff --git a/Riot/Modules/Threads/ThreadList/ThreadListViewModel.swift b/Riot/Modules/Threads/ThreadList/ThreadListViewModel.swift
index e63a63703..af2459446 100644
--- a/Riot/Modules/Threads/ThreadList/ThreadListViewModel.swift
+++ b/Riot/Modules/Threads/ThreadList/ThreadListViewModel.swift
@@ -206,25 +206,8 @@ final class ThreadListViewModel: ThreadListViewModelProtocol {
         guard let message = thread.rootMessage else {
             return nil
         }
-        if message.isReply(), let newMessage = message.copy() as? MXEvent {
-            var jsonDict = newMessage.isEncrypted ? newMessage.clear?.jsonDictionary() : newMessage.jsonDictionary()
-            if var content = jsonDict?["content"] as? [String: Any] {
-                content.removeValue(forKey: "format")
-                content.removeValue(forKey: "formatted_body")
-                content.removeValue(forKey: kMXEventRelationRelatesToKey)
-                if let replyText = MXReplyEventParser().parse(newMessage)?.bodyParts.replyText {
-                    content["body"] = replyText
-                }
-                jsonDict?["content"] = content
-            }
-            let trimmedMessage = MXEvent(fromJSON: jsonDict)
-            let formatterError = UnsafeMutablePointer<MXKEventFormatterError>.allocate(capacity: 1)
-            return eventFormatter.attributedString(from: trimmedMessage,
-                                                   with: roomState,
-                                                   error: formatterError)
-        }
         let formatterError = UnsafeMutablePointer<MXKEventFormatterError>.allocate(capacity: 1)
-        return eventFormatter.attributedString(from: message,
+        return eventFormatter.attributedString(from: message.replyStrippedVersion,
                                                with: roomState,
                                                error: formatterError)
     }
@@ -238,7 +221,7 @@ final class ThreadListViewModel: ThreadListViewModelProtocol {
         }
         let formatterError = UnsafeMutablePointer<MXKEventFormatterError>.allocate(capacity: 1)
         return (
-            eventFormatter.attributedString(from: message,
+            eventFormatter.attributedString(from: message.replyStrippedVersion,
                                             with: roomState,
                                             error: formatterError),
             eventFormatter.dateString(from: message, withTime: true)
diff --git a/changelog.d/5488.change b/changelog.d/5488.change
new file mode 100644
index 000000000..e1b4dc675
--- /dev/null
+++ b/changelog.d/5488.change
@@ -0,0 +1 @@
+Threads: Strip `ìn reply to` from thread summaries and latest messages.