diff --git a/samples/doc-snippets/src/main/java/com/example/api/ExampleGrpcEndpointImpl.java b/samples/doc-snippets/src/main/java/com/example/api/ExampleGrpcEndpointImpl.java
index 0c8538671..097f30dbf 100644
--- a/samples/doc-snippets/src/main/java/com/example/api/ExampleGrpcEndpointImpl.java
+++ b/samples/doc-snippets/src/main/java/com/example/api/ExampleGrpcEndpointImpl.java
@@ -1,6 +1,7 @@
 package com.example.api;
 
 import akka.NotUsed;
+import akka.javasdk.annotations.Acl;
 import akka.javasdk.annotations.GrpcEndpoint;
 import akka.stream.Materializer;
 import akka.stream.javadsl.Sink;
@@ -12,6 +13,7 @@
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionStage;
 
+@Acl(allow = @Acl.Matcher(principal = Acl.Principal.ALL))
 @GrpcEndpoint
 public class ExampleGrpcEndpointImpl implements ExampleGrpcEndpoint {