diff --git a/docs/DeveloperGuide.md b/docs/DeveloperGuide.md
index a0714ce5b7..ceb0e25308 100644
--- a/docs/DeveloperGuide.md
+++ b/docs/DeveloperGuide.md
@@ -394,7 +394,7 @@ The following sequence diagram shows the execution of a RenameCommand<br>
 
 1. The `SuperTracker` class calls the `execute` method of `RenameCommand`
 2. The item object of the item to be renamed is obtained from `Inventory`
-3. The quantity, price and expiry date are obtained from the item
+3. The old name, quantity, price and expiry date are obtained from the item
 4. A new `Item` object with the given parameters (newName, quantity, price, expiry date) is created and returned to `RenameCommand`
 5. The `delete` method of the `Inventory` class is called to delete the old item
 6. The `put` method of the `Inventory` class is called to put the new item into the inventory
diff --git a/docs/uml-diagrams/RenameCommand.puml b/docs/uml-diagrams/RenameCommand.puml
index a5cc84c3b2..9ba7a9543f 100644
--- a/docs/uml-diagrams/RenameCommand.puml
+++ b/docs/uml-diagrams/RenameCommand.puml
@@ -81,6 +81,11 @@ activate Inventory #d5eac2
 Inventory --> RenameCommand : oldItem:Item
 deactivate Inventory
 
+RenameCommand -> oldItem: getName()
+activate oldItem #ffa1a1
+oldItem --> RenameCommand: oldName:String
+deactivate oldItem
+
 RenameCommand -> oldItem: getQuantity()
 activate oldItem #ffa1a1
 oldItem --> RenameCommand: quantity:int
@@ -111,7 +116,7 @@ activate Inventory #d5eac2
 Inventory --> RenameCommand
 deactivate Inventory
 
-RenameCommand -> Ui : renameCommandSuccess(item:Item)
+RenameCommand -> Ui : renameCommandSuccess(newItem:Item, oldName:String)
 activate Ui #e5c2ea
 Ui --> RenameCommand
 deactivate Ui
diff --git a/docs/uml-diagrams/RenameCommandSequence.png b/docs/uml-diagrams/RenameCommandSequence.png
index 0d5b62c318..9896c227d8 100644
Binary files a/docs/uml-diagrams/RenameCommandSequence.png and b/docs/uml-diagrams/RenameCommandSequence.png differ
diff --git a/src/main/java/supertracker/command/RenameCommand.java b/src/main/java/supertracker/command/RenameCommand.java
index 5c99c7ea09..922bf5263e 100644
--- a/src/main/java/supertracker/command/RenameCommand.java
+++ b/src/main/java/supertracker/command/RenameCommand.java
@@ -32,6 +32,7 @@ public void execute() {
         assert Inventory.contains(name);
 
         Item oldItem = Inventory.get(name);
+        String oldName = oldItem.getName();
         int quantity = oldItem.getQuantity();
         double price = oldItem.getPrice();
         LocalDate expiryDate = oldItem.getExpiryDate();
@@ -40,7 +41,7 @@ public void execute() {
         Inventory.delete(name);
 
         Inventory.put(newName, newItem);
-        Ui.renameCommandSuccess(newItem, name);
+        Ui.renameCommandSuccess(newItem, oldName);
 
         try {
             ItemStorage.saveData();