diff --git a/x/vaults/keeper/vault.go b/x/vaults/keeper/vault.go
index aefe083..ad722e7 100644
--- a/x/vaults/keeper/vault.go
+++ b/x/vaults/keeper/vault.go
@@ -119,7 +119,7 @@ func (k *Keeper) CreateNewVault(
 		),
 	)
 
-	return k.VaultsManager.Set(ctx, denom, vm)
+	return k.VaultsManager.Set(ctx, key, vm)
 }
 
 func (k *Keeper) CloseVault(
diff --git a/x/vaults/keeper/vaults_test.go b/x/vaults/keeper/vaults_test.go
index 562b503..b4c88a8 100644
--- a/x/vaults/keeper/vaults_test.go
+++ b/x/vaults/keeper/vaults_test.go
@@ -136,7 +136,7 @@ func (s *KeeperTestSuite) TestCreateNewVault() {
 			} else {
 				s.Require().NoError(err)
 
-				vm, err := s.k.GetVaultManager(s.Ctx, denom, "nomUSD")
+				vm, err := s.k.GetVaultManager(s.Ctx, denom, mintDenom)
 				s.Require().NoError(err)
 				s.Require().NotEqual(maxDebt, vm.MintAvailable)