diff --git a/yarn-project/simulator/src/avm/journal/journal.test.ts b/yarn-project/simulator/src/avm/journal/journal.test.ts
index 07efb46a6471..09e368f01007 100644
--- a/yarn-project/simulator/src/avm/journal/journal.test.ts
+++ b/yarn-project/simulator/src/avm/journal/journal.test.ts
@@ -139,9 +139,9 @@ describe('journal', () => {
 
     it('Should maintain l1 messages', () => {
       const recipient = new Fr(1);
-      persistableState.writeL2ToL1Message(recipient, utxo);
+      persistableState.writeL2ToL1Message(address, recipient, utxo);
       expect(trace.traceNewL2ToL1Message).toHaveBeenCalledTimes(1);
-      expect(trace.traceNewL2ToL1Message).toHaveBeenCalledWith(recipient, utxo);
+      expect(trace.traceNewL2ToL1Message).toHaveBeenCalledWith(address, recipient, utxo);
     });
   });
 
diff --git a/yarn-project/simulator/src/avm/journal/journal.ts b/yarn-project/simulator/src/avm/journal/journal.ts
index 843b6ed90aec..b26c40418381 100644
--- a/yarn-project/simulator/src/avm/journal/journal.ts
+++ b/yarn-project/simulator/src/avm/journal/journal.ts
@@ -187,12 +187,13 @@ export class AvmPersistableStateManager {
 
   /**
    * Write an L2 to L1 message.
+   * @param contractAddress - L2 contract address that created this message
    * @param recipient - L1 contract address to send the message to.
    * @param content - Message content.
    */
-  public writeL2ToL1Message(recipient: Fr, content: Fr) {
-    this.log.debug(`L1Messages(${recipient}) += ${content}.`);
-    this.trace.traceNewL2ToL1Message(recipient, content);
+  public writeL2ToL1Message(contractAddress: Fr, recipient: Fr, content: Fr) {
+    this.log.debug(`L2ToL1Messages(${contractAddress}) += (recipient: ${recipient}, content: ${content}).`);
+    this.trace.traceNewL2ToL1Message(contractAddress, recipient, content);
   }
 
   /**
diff --git a/yarn-project/simulator/src/avm/opcodes/accrued_substate.test.ts b/yarn-project/simulator/src/avm/opcodes/accrued_substate.test.ts
index 442bb985ba37..14841c01950a 100644
--- a/yarn-project/simulator/src/avm/opcodes/accrued_substate.test.ts
+++ b/yarn-project/simulator/src/avm/opcodes/accrued_substate.test.ts
@@ -362,7 +362,7 @@ describe('Accrued Substate', () => {
         /*contentOffset=*/ value1Offset,
       ).execute(context);
       expect(trace.traceNewL2ToL1Message).toHaveBeenCalledTimes(1);
-      expect(trace.traceNewL2ToL1Message).toHaveBeenCalledWith(/*recipient=*/ value0, /*content=*/ value1);
+      expect(trace.traceNewL2ToL1Message).toHaveBeenCalledWith(address, /*recipient=*/ value0, /*content=*/ value1);
     });
   });
 
diff --git a/yarn-project/simulator/src/avm/opcodes/accrued_substate.ts b/yarn-project/simulator/src/avm/opcodes/accrued_substate.ts
index e7b16a6b4f02..e5c1b7c3b0b8 100644
--- a/yarn-project/simulator/src/avm/opcodes/accrued_substate.ts
+++ b/yarn-project/simulator/src/avm/opcodes/accrued_substate.ts
@@ -268,7 +268,7 @@ export class SendL2ToL1Message extends Instruction {
 
     const recipient = memory.get(recipientOffset).toFr();
     const content = memory.get(contentOffset).toFr();
-    context.persistableState.writeL2ToL1Message(recipient, content);
+    context.persistableState.writeL2ToL1Message(context.environment.address, recipient, content);
 
     memory.assert({ reads: 2, addressing });
     context.machineState.incrementPc();
diff --git a/yarn-project/simulator/src/public/side_effect_trace.test.ts b/yarn-project/simulator/src/public/side_effect_trace.test.ts
index ff5a9efcff17..a0b4f16f7091 100644
--- a/yarn-project/simulator/src/public/side_effect_trace.test.ts
+++ b/yarn-project/simulator/src/public/side_effect_trace.test.ts
@@ -207,7 +207,7 @@ describe('Side Effect Trace', () => {
   });
 
   it('Should trace new L2ToL1 messages', () => {
-    trace.traceNewL2ToL1Message(recipient, content);
+    trace.traceNewL2ToL1Message(address, recipient, content);
     expect(trace.getCounter()).toBe(startCounterPlus1);
 
     const pxResult = toPxResult(trace);
@@ -326,9 +326,11 @@ describe('Side Effect Trace', () => {
 
     it('Should enforce maximum number of new l2 to l1 messages', () => {
       for (let i = 0; i < MAX_L2_TO_L1_MSGS_PER_TX; i++) {
-        trace.traceNewL2ToL1Message(new Fr(i), new Fr(i));
+        trace.traceNewL2ToL1Message(new Fr(i), new Fr(i), new Fr(i));
       }
-      expect(() => trace.traceNewL2ToL1Message(new Fr(42), new Fr(42))).toThrow(SideEffectLimitReachedError);
+      expect(() => trace.traceNewL2ToL1Message(new Fr(42), new Fr(42), new Fr(42))).toThrow(
+        SideEffectLimitReachedError,
+      );
     });
 
     it('Should enforce maximum number of new logs hashes', () => {
@@ -390,7 +392,7 @@ describe('Side Effect Trace', () => {
     testCounter++;
     nestedTrace.traceL1ToL2MessageCheck(address, utxo, leafIndex, existsDefault);
     // counter does not increment for l1tol2 message checks
-    nestedTrace.traceNewL2ToL1Message(recipient, content);
+    nestedTrace.traceNewL2ToL1Message(address, recipient, content);
     testCounter++;
     nestedTrace.traceUnencryptedLog(address, log);
     testCounter++;
diff --git a/yarn-project/simulator/src/public/side_effect_trace.ts b/yarn-project/simulator/src/public/side_effect_trace.ts
index c5a458788d09..5e0f8d51cf76 100644
--- a/yarn-project/simulator/src/public/side_effect_trace.ts
+++ b/yarn-project/simulator/src/public/side_effect_trace.ts
@@ -182,7 +182,7 @@ export class PublicSideEffectTrace implements PublicSideEffectTraceInterface {
     // NOTE: counter does not increment for l1tol2 message checks (because it doesn't rely on pending messages)
   }
 
-  public traceNewL2ToL1Message(recipient: Fr, content: Fr) {
+  public traceNewL2ToL1Message(_contractAddress: Fr, recipient: Fr, content: Fr) {
     if (this.newL2ToL1Messages.length >= MAX_L2_TO_L1_MSGS_PER_TX) {
       throw new SideEffectLimitReachedError('l2 to l1 message', MAX_L2_TO_L1_MSGS_PER_TX);
     }
diff --git a/yarn-project/simulator/src/public/side_effect_trace_interface.ts b/yarn-project/simulator/src/public/side_effect_trace_interface.ts
index b5a6c397b00a..2d229d7f7b4e 100644
--- a/yarn-project/simulator/src/public/side_effect_trace_interface.ts
+++ b/yarn-project/simulator/src/public/side_effect_trace_interface.ts
@@ -16,8 +16,7 @@ export interface PublicSideEffectTraceInterface {
   traceNullifierCheck(storageAddress: Fr, nullifier: Fr, leafIndex: Fr, exists: boolean, isPending: boolean): void;
   traceNewNullifier(storageAddress: Fr, nullifier: Fr): void;
   traceL1ToL2MessageCheck(contractAddress: Fr, msgHash: Fr, msgLeafIndex: Fr, exists: boolean): void;
-  // TODO(dbanks12): should new message accept contract address as arg?
-  traceNewL2ToL1Message(recipient: Fr, content: Fr): void;
+  traceNewL2ToL1Message(contractAddress: Fr, recipient: Fr, content: Fr): void;
   traceUnencryptedLog(contractAddress: Fr, log: Fr[]): void;
   // TODO(dbanks12): odd that getContractInstance is a one-off in that it accepts an entire object instead of components
   traceGetContractInstance(instance: TracedContractInstance): void;