diff --git a/config.go b/config.go
index c0d0e19..c5ef9dc 100644
--- a/config.go
+++ b/config.go
@@ -108,11 +108,6 @@ func WithStrategies(strategies ...strategy.Strategy) ConfigOption {
 		o.strategies = strategies
 	}
 }
-func WithStarted(startedAt time.Time) ConfigOption {
-	return func(o *configOption) {
-		o.started = &startedAt
-	}
-}
 
 // WithStorage specifies which storage implementation the repository should use for storing feature
 // toggles.
diff --git a/metrics_test.go b/metrics_test.go
index 270d3b5..d346a0f 100644
--- a/metrics_test.go
+++ b/metrics_test.go
@@ -22,6 +22,12 @@ import (
 	"github.com/stretchr/testify/mock"
 )
 
+func WithStarted(startedAt time.Time) ConfigOption {
+	return func(o *configOption) {
+		o.started = &startedAt
+	}
+}
+
 func TestMetrics_RegisterInstance(t *testing.T) {
 	assert := assert.New(t)
 	defer gock.OffAll()