diff --git a/libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/EuiccConfiguredAddresses.kt b/libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/EuiccConfiguredAddresses.kt
index 437a0a3..e7f090a 100644
--- a/libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/EuiccConfiguredAddresses.kt
+++ b/libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/EuiccConfiguredAddresses.kt
@@ -2,10 +2,11 @@ package net.typeblog.lpac_jni
 
 import android.util.Patterns
 
+// example address in GSMA SGP.26, some chips use addresses like this
 @Suppress("SpellCheckingInspection")
 val invalidDPAddresses = setOf(
-    "testrootsmds.example.com",
     "testrootsmds.gsma.com",
+    "testrootsmds.example.com",
 )
 
 class EuiccConfiguredAddresses(defaultDPAddress: String?, rootDSAddress: String?) {
@@ -24,6 +25,5 @@ private fun isInvalidDPAddress(address: String?): Boolean {
 private fun isInvalidDSAddress(address: String?): Boolean {
     if (address.isNullOrBlank()) return true
     if (address in invalidDPAddresses) return true
-    if (Patterns.DOMAIN_NAME.matcher(address).matches()) return false
-    return false
+    return !Patterns.DOMAIN_NAME.matcher(address).matches()
 }