diff --git a/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/chan_types.rs b/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/chan_types.rs
deleted file mode 100644
index f31e6ff30..000000000
--- a/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/chan_types.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-use super::*;
-
-#[cw_serde]
-pub enum LightClientChannelMessage {
-    ChannelVerify {
-        proof_height: String,
-        counterparty_prefix: Vec<u8>,
-        proof: Vec<u8>,
-        root: Vec<u8>,
-        counterparty_chan_end_path: Vec<u8>,
-        expected_counterparty_channel_end: Vec<u8>,
-    },
-}
diff --git a/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/handler.rs b/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/handler.rs
index 60402c483..41e016960 100644
--- a/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/handler.rs
+++ b/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/handler.rs
@@ -159,7 +159,7 @@ impl<'a> ValidateChannel for CwIbcCoreContext<'a> {
         let chan_end_path_on_a = self.channel_path(&port_id_on_a, &chan_id_on_a);
         let vector = to_vec(&expected_chan_end_on_a);
 
-        let create_client_message = LightClientChannelMessage::ChannelVerify {
+        let create_client_message = LightClientMessage::VerifyChannel {
             proof_height: message.proof_height_on_a.to_string(),
             counterparty_prefix: prefix_on_a.clone().into_vec(),
             proof: message.proof_chan_end_on_a.clone().into(),
@@ -244,7 +244,7 @@ impl<'a> ValidateChannel for CwIbcCoreContext<'a> {
         );
         let chan_end_path_on_b = self.channel_path(&port_id_on_b, &message.chan_id_on_b);
         let vector = to_vec(&expected_chan_end_on_b);
-        let create_client_message = LightClientChannelMessage::ChannelVerify {
+        let create_client_message = LightClientMessage::VerifyChannel {
             proof_height: message.proof_height_on_b.to_string(),
             counterparty_prefix: prefix_on_b.clone().into_vec(),
             proof: message.proof_chan_end_on_b.clone().into(),
@@ -596,7 +596,9 @@ impl<'a> ExecuteChannel for CwIbcCoreContext<'a> {
                         channel_end.counterparty().channel_id().unwrap().as_str(),
                         channel_end.connection_hops()[0].as_str(),
                     );
-                    Ok(Response::new().add_event(event))
+                    Ok(Response::new()
+                        .add_event(event)
+                        .add_attribute("method", "execute_channel_open_ack"))
                 }
                 None => {
                     return Err(ContractError::IbcChannelError {
diff --git a/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/mod.rs b/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/mod.rs
index eeed28e5b..79350dfb0 100644
--- a/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/mod.rs
+++ b/contracts/cosmwasm-vm/cw-ibc-core/src/ics04_channel/mod.rs
@@ -4,13 +4,11 @@ pub use channel::*;
 pub mod events;
 pub use events::*;
 pub mod handler;
-pub use handler::*;
-pub mod chan_types;
 pub use super::*;
 use crate::context::CwIbcCoreContext;
 pub use crate::types::*;
-pub use chan_types::*;
 pub use channel::*;
+pub use handler::*;
 
 use cosmwasm_std::Event;
 use cosmwasm_std::Reply;
@@ -36,6 +34,7 @@ use ibc::core::{
     ContextError,
 };
 use ibc::events::IbcEventType;
+pub use msg::LightClientMessage;
 use std::str::FromStr;
 pub use traits::*;
 
diff --git a/contracts/cosmwasm-vm/cw-ibc-core/src/msg.rs b/contracts/cosmwasm-vm/cw-ibc-core/src/msg.rs
index 6cee0a7fe..efe1b42b9 100644
--- a/contracts/cosmwasm-vm/cw-ibc-core/src/msg.rs
+++ b/contracts/cosmwasm-vm/cw-ibc-core/src/msg.rs
@@ -27,6 +27,14 @@ pub enum LightClientMessage {
         proof_upgrade_client: Vec<u8>,
         proof_upgrade_consensus_state: Vec<u8>,
     },
+    VerifyChannel {
+        proof_height: String,
+        counterparty_prefix: Vec<u8>,
+        proof: Vec<u8>,
+        root: Vec<u8>,
+        counterparty_chan_end_path: Vec<u8>,
+        expected_counterparty_channel_end: Vec<u8>,
+    },
 }
 
 #[cw_serde]