diff --git a/radix-engine-tests/assets/blueprints/execution_trace/src/execution_trace.rs b/radix-engine-tests/assets/blueprints/execution_trace/src/execution_trace.rs
index 67ca0a0818..675ea4797f 100644
--- a/radix-engine-tests/assets/blueprints/execution_trace/src/execution_trace.rs
+++ b/radix-engine-tests/assets/blueprints/execution_trace/src/execution_trace.rs
@@ -118,4 +118,3 @@ mod execution_trace_test {
         }
     }
 }
-
diff --git a/radix-engine/src/system/system_modules/execution_trace/module.rs b/radix-engine/src/system/system_modules/execution_trace/module.rs
index fd3bfeea48..fae75f10e3 100644
--- a/radix-engine/src/system/system_modules/execution_trace/module.rs
+++ b/radix-engine/src/system/system_modules/execution_trace/module.rs
@@ -91,8 +91,10 @@ impl From<&BucketSnapshot> for ResourceSpecifier {
 
 #[derive(Debug, Clone)]
 pub enum VaultOp {
-    Put(ResourceAddress, Decimal), // TODO: add non-fungible support
+    Put(ResourceAddress, Decimal),
     Take(ResourceAddress, Decimal),
+    // We intentionally disregard IDs and only use the amount for non-fungibles.
+    // This maintains backward compatibility for users of the `ResourceChange` struct.
     TakeNonFungibles(ResourceAddress, Decimal),
     TakeAdvanced(ResourceAddress, Decimal),
     LockFee(Decimal, bool),