diff --git a/evm/tests/src/MockApp.t.sol b/evm/tests/src/MockApp.t.sol
index 1472b8e127..608643aef6 100644
--- a/evm/tests/src/MockApp.t.sol
+++ b/evm/tests/src/MockApp.t.sol
@@ -25,6 +25,11 @@ contract MockApp is IIBCModule {
         address relayer
     ) external virtual override {}
 
+    function onTimeoutPacket(
+        IbcCoreChannelV1Packet.Data calldata packet,
+        address relayer
+    ) external virtual override {}
+
     function onChanOpenInit(
         IbcCoreChannelV1GlobalEnums.Order,
         string[] calldata,
diff --git a/evm/tests/src/utils/MockApp.sol b/evm/tests/src/utils/MockApp.sol
index c8b713720b..4e6d777f0b 100644
--- a/evm/tests/src/utils/MockApp.sol
+++ b/evm/tests/src/utils/MockApp.sol
@@ -9,6 +9,7 @@ import {Context} from "@openzeppelin/contracts/utils/Context.sol";
 contract MockApp is IIBCModule {
     event MockPacketRecv();
     event MockPacketAck();
+    event MockPacketTimeout();
     event MockChannelOpenInit(string portId, string channelId);
     event MockChannelOpenTry();
     event MockChannelOpenAck();
@@ -32,6 +33,13 @@ contract MockApp is IIBCModule {
         emit MockPacketAck();
     }
 
+    function onTimeoutPacket(
+        Packet.Data calldata packet,
+        address relayer
+    ) external virtual override {
+        emit MockPacketTimeout();
+    }
+
     function onChanOpenInit(
         ChannelEnums.Order,
         string[] calldata,