diff --git a/internal/config/config.go b/internal/config/config.go
index 2f7c0979fe..c5dd20195e 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -422,7 +422,7 @@ func handleSelfSignedCertificates(col *Collector) error {
 }
 
 func processOtlpReceivers(tlsConfig *OtlpTLSConfig) error {
-	sanNames := []string{"127.0.0.1", "::1", "localhost"}
+	sanNames := strings.Split(DefCollectorTLSSANNames, ",")
 
 	if tlsConfig.Ca == "" {
 		tlsConfig.Ca = DefCollectorTLSCAPath
diff --git a/internal/config/defaults.go b/internal/config/defaults.go
index 1be57d62cb..40030c5020 100644
--- a/internal/config/defaults.go
+++ b/internal/config/defaults.go
@@ -22,6 +22,7 @@ const (
 	DefCollectorTLSCertPath          = "/var/lib/nginx-agent/cert.pem"
 	DefCollectorTLSKeyPath           = "/var/lib/nginx-agent/key.pem"
 	DefCollectorTLSCAPath            = "/var/lib/nginx-agent/ca.pem"
+	DefCollectorTLSSANNames          = "127.0.0.1, ::1, localhost"
 
 	DefCommandServerHostKey    = ""
 	DefCommandServerPortKey    = 0