diff --git a/common/cosmwasm-smart-contracts/mixnet-contract/src/msg.rs b/common/cosmwasm-smart-contracts/mixnet-contract/src/msg.rs
index 674426b91b..1af718afde 100644
--- a/common/cosmwasm-smart-contracts/mixnet-contract/src/msg.rs
+++ b/common/cosmwasm-smart-contracts/mixnet-contract/src/msg.rs
@@ -370,6 +370,7 @@ pub enum QueryMsg {
     },
     // state/sys-params-related
     GetContractVersion {},
+    #[serde(rename = "get_cw2_contract_version")]
     GetCW2ContractVersion {},
     GetRewardingValidatorAddress {},
     GetStateParams {},
diff --git a/common/cosmwasm-smart-contracts/vesting-contract/src/messages.rs b/common/cosmwasm-smart-contracts/vesting-contract/src/messages.rs
index 644fa599bb..8df999f2a6 100644
--- a/common/cosmwasm-smart-contracts/vesting-contract/src/messages.rs
+++ b/common/cosmwasm-smart-contracts/vesting-contract/src/messages.rs
@@ -189,6 +189,7 @@ impl ExecuteMsg {
 #[serde(rename_all = "snake_case")]
 pub enum QueryMsg {
     GetContractVersion {},
+    #[serde(rename = "get_cw2_contract_version")]
     GetCW2ContractVersion {},
     GetAccountsPaged {
         start_next_after: Option<String>,