diff --git a/modules/openid-federation-client/src/jsMain/kotlin/com/sphereon/oid/fed/client/trustchain/TrustChain.js.kt b/modules/openid-federation-client/src/jsMain/kotlin/com/sphereon/oid/fed/client/trustchain/TrustChain.js.kt
index 10893312..0b9eeb44 100644
--- a/modules/openid-federation-client/src/jsMain/kotlin/com/sphereon/oid/fed/client/trustchain/TrustChain.js.kt
+++ b/modules/openid-federation-client/src/jsMain/kotlin/com/sphereon/oid/fed/client/trustchain/TrustChain.js.kt
@@ -133,9 +133,10 @@ class DefaultTrustChainJSImpl(
             mapEntityStatement(entityConfigurationJwt, EntityConfigurationStatement::class) ?: return@async null
 
         if (chain.isEmpty()) {
-            chain[chain.size] = entityConfigurationJwt
+            chain.add(entityConfigurationJwt)
         }
 
+        println("Getting authority hints")
         val authorityHints = entityStatement.authorityHints ?: return@async null
 
         val reorderedAuthorityHints = authorityHints.sortedBy { hint ->