diff --git a/extension/solarwindsapmsettingsextension/extension.go b/extension/solarwindsapmsettingsextension/extension.go
index a22b30ec20dc..3b5741efd370 100644
--- a/extension/solarwindsapmsettingsextension/extension.go
+++ b/extension/solarwindsapmsettingsextension/extension.go
@@ -9,6 +9,7 @@ import (
 	"github.com/gogo/protobuf/proto"
 	"github.com/solarwindscloud/apm-proto/go/collectorpb"
 	"go.opentelemetry.io/collector/component"
+	"go.opentelemetry.io/collector/extension"
 	"go.uber.org/zap"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
@@ -32,6 +33,14 @@ type solarwindsapmSettingsExtension struct {
 	client collectorpb.TraceCollectorClient
 }
 
+func newSolarwindsApmSettingsExtension(extensionCfg *Config, logger *zap.Logger) (extension.Extension, error) {
+	settingsExtension := &solarwindsapmSettingsExtension{
+		config: extensionCfg,
+		logger: logger,
+	}
+	return settingsExtension, nil
+}
+
 func Refresh(extension *solarwindsapmSettingsExtension) {
 	extension.logger.Info("Time to refresh from " + extension.config.Endpoint)
 	if hostname, err := os.Hostname(); err != nil {
@@ -135,12 +144,8 @@ func Refresh(extension *solarwindsapmSettingsExtension) {
 								if value, ok := item.Arguments["ProfilingInterval"]; ok {
 									arguments["ProfilingInterval"] = int32(binary.LittleEndian.Uint32(value))
 								}
-								/**
-								 * We don't want to expose SignatureKey now
-								 */
-								//if value, ok := item.Arguments["SignatureKey"]; ok {
-								//	arguments["SignatureKey"] = string(value)
-								//}
+								// Remove SignatureKey from collector response
+								delete(arguments, "SignatureKey")
 							}
 							settings = append(settings, setting)
 						}
diff --git a/extension/solarwindsapmsettingsextension/extension_test.go b/extension/solarwindsapmsettingsextension/extension_test.go
index 0da0c7374cff..9c865fd6f9e4 100644
--- a/extension/solarwindsapmsettingsextension/extension_test.go
+++ b/extension/solarwindsapmsettingsextension/extension_test.go
@@ -1 +1,29 @@
 package solarwindsapmsettingsextension
+
+import (
+	"context"
+	"github.com/stretchr/testify/require"
+	"go.opentelemetry.io/collector/extension"
+	"go.uber.org/zap"
+	"testing"
+)
+
+func TestCreateExtension(t *testing.T) {
+	conf := &Config{
+		Endpoint: "apm.collector.cloud.solarwinds.com:443",
+		Key:      "vlEW1JtimSH2LlBsNrPdeEjBxNl5z8Bp7gX55bNTk3_GIxHWedgj42GDFBWpRe2ne7TffHk:jerry_test",
+		Interval: "1s",
+	}
+	ex := createAnExtension(conf, t)
+	ex.Shutdown(context.TODO())
+}
+
+// create extension
+func createAnExtension(c *Config, t *testing.T) extension.Extension {
+	logger, err := zap.NewProduction()
+	ex, err := newSolarwindsApmSettingsExtension(c, logger)
+	require.NoError(t, err)
+	err = ex.Start(context.TODO(), nil)
+	require.NoError(t, err)
+	return ex
+}
diff --git a/extension/solarwindsapmsettingsextension/factory.go b/extension/solarwindsapmsettingsextension/factory.go
index deb5f0439a0f..61be48b8b49b 100644
--- a/extension/solarwindsapmsettingsextension/factory.go
+++ b/extension/solarwindsapmsettingsextension/factory.go
@@ -20,14 +20,7 @@ func createDefaultConfig() component.Config {
 }
 
 func createExtension(_ context.Context, settings extension.CreateSettings, cfg component.Config) (extension.Extension, error) {
-	logger := settings.Logger
-	extensionCfg := cfg.(*Config)
-
-	settingsExtension := &solarwindsapmSettingsExtension{
-		logger: logger,
-		config: extensionCfg,
-	}
-	return settingsExtension, nil
+	return newSolarwindsApmSettingsExtension(cfg.(*Config), settings.Logger)
 }
 
 func NewFactory() extension.Factory {