diff --git a/extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/ForwardedProxyHandler.java b/extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/ForwardedProxyHandler.java
index cde4f0d034fd8..82c548558a30b 100644
--- a/extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/ForwardedProxyHandler.java
+++ b/extensions/vertx-http/runtime/src/main/java/io/quarkus/vertx/http/runtime/ForwardedProxyHandler.java
@@ -79,7 +79,7 @@ private void lookupHostNamesAndHandleRequest(HttpServerRequest event,
                     new Handler<AsyncResult<String>>() {
                         @Override
                         public void handle(AsyncResult<String> stringAsyncResult) {
-                            if (stringAsyncResult.succeeded()) {
+                            if (stringAsyncResult.succeeded() && stringAsyncResult.result() != null) {
                                 var trustedIP = Inet.parseInetAddress(stringAsyncResult.result());
                                 if (trustedIP != null) {
                                     // create proxy check for resolved IP and proceed with the lookup