diff --git a/akka-http/src/test/scala/config/ConfigSpec.scala b/akka-http/src/test/scala/config/ConfigSpec.scala
index 2b21f3cc34..fe4ad0c2f9 100644
--- a/akka-http/src/test/scala/config/ConfigSpec.scala
+++ b/akka-http/src/test/scala/config/ConfigSpec.scala
@@ -16,17 +16,10 @@ class ConfigSpec extends WordSpec with MustMatchers {
     "contain all configuration properties for akka-http that are used in code with their correct defaults" in {
       import Config.config._
 
-      getString("akka.http.authenticator") must equal(Some("N/A"))
       getBool("akka.http.connection-close") must equal(Some(true))
       getString("akka.http.expired-header-name") must equal(Some("Async-Timeout"))
-      getList("akka.http.filters") must equal(List("akka.security.AkkaSecurityFilterFactory"))
-      getList("akka.http.resource-packages") must equal(Nil)
       getString("akka.http.hostname") must equal(Some("localhost"))
       getString("akka.http.expired-header-value") must equal(Some("expired"))
-      getString("akka.http.kerberos.servicePrincipal") must equal(Some("N/A"))
-      getString("akka.http.kerberos.keyTabLocation") must equal(Some("N/A"))
-      getString("akka.http.kerberos.kerberosDebug") must equal(Some("N/A"))
-      getString("akka.http.kerberos.realm") must equal(Some(""))
       getInt("akka.http.port") must equal(Some(9998))
       getBool("akka.http.root-actor-builtin") must equal(Some(true))
       getString("akka.http.root-actor-id") must equal(Some("_httproot"))