diff --git a/vault/testing.go b/vault/testing.go
index c8fa642b6..3e19c85de 100644
--- a/vault/testing.go
+++ b/vault/testing.go
@@ -1297,6 +1297,7 @@ func NewTestCluster(t testing.T, base *CoreConfig, opts *TestClusterOptions) *Te
 		coreConfig.DisableCache = base.DisableCache
 		coreConfig.LicensingConfig = base.LicensingConfig
 		coreConfig.DisablePerformanceStandby = base.DisablePerformanceStandby
+		coreConfig.MetricsHelper = base.MetricsHelper
 		if base.BuiltinRegistry != nil {
 			coreConfig.BuiltinRegistry = base.BuiltinRegistry
 		}