diff --git a/app/app.go b/app/app.go
index e03dd853af..ba53284f16 100644
--- a/app/app.go
+++ b/app/app.go
@@ -557,7 +557,7 @@ func New(
 		authtypes.NewModuleAddress(govtypes.ModuleName).String(),
 	)
 	app.ICAHostKeeper = icahostkeeper.NewKeeper(
-		appCodec, keys[icahosttypes.StoreKey], app.GetSubspace(icahosttypes.SubModuleName),
+		appCodec, keys[icahosttypes.StoreKey], ICAHostMockSubspace{},
 		app.IBCFeeKeeper, // ISC4 Wrapper: fee IBC middleware
 		app.IBCKeeper.ChannelKeeper, app.IBCKeeper.PortKeeper,
 		app.AccountKeeper, scopedICAHostKeeper, app.MsgServiceRouter(),
@@ -1307,7 +1307,6 @@ func initParamsKeeper(appCodec codec.BinaryCodec, legacyAmino *codec.LegacyAmino
 	paramsKeeper.Subspace(ibcexported.ModuleName).WithKeyTable(keyTable)
 	paramsKeeper.Subspace(ibctransfertypes.ModuleName).WithKeyTable(ibctransfertypes.ParamKeyTable())
 	paramsKeeper.Subspace(icacontrollertypes.SubModuleName).WithKeyTable(icacontrollertypes.ParamKeyTable())
-	paramsKeeper.Subspace(icahosttypes.SubModuleName).WithKeyTable(icahosttypes.ParamKeyTable())
 	paramsKeeper.Subspace(icaauthtypes.ModuleName)
 	paramsKeeper.Subspace(evmtypes.ModuleName).WithKeyTable(v0evmtypes.ParamKeyTable()) //nolint: staticcheck
 	paramsKeeper.Subspace(feemarkettypes.ModuleName).WithKeyTable(feemarkettypes.ParamKeyTable())