diff --git a/extensions/virtual-threads/runtime/src/main/java/io/quarkus/virtual/threads/FallbackVirtualThreadsExecutorService.java b/extensions/virtual-threads/runtime/src/main/java/io/quarkus/virtual/threads/FallbackVirtualThreadsExecutorService.java
index 01c89c19481f9..b2fa837d6df9e 100644
--- a/extensions/virtual-threads/runtime/src/main/java/io/quarkus/virtual/threads/FallbackVirtualThreadsExecutorService.java
+++ b/extensions/virtual-threads/runtime/src/main/java/io/quarkus/virtual/threads/FallbackVirtualThreadsExecutorService.java
@@ -4,6 +4,7 @@
 import java.util.List;
 import java.util.concurrent.AbstractExecutorService;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import io.smallrye.mutiny.infrastructure.Infrastructure;
 import io.vertx.core.Vertx;
@@ -18,6 +19,8 @@
  */
 class FallbackVirtualThreadsExecutorService extends AbstractExecutorService {
 
+    private AtomicBoolean shutdown = new AtomicBoolean();
+
     @Override
     public void execute(Runnable command) {
         var context = Vertx.currentContext();
@@ -33,26 +36,28 @@ public void execute(Runnable command) {
 
     @Override
     public void shutdown() {
-        // no-op
+        shutdown.compareAndSet(false, true);
     }
 
     @Override
     public List<Runnable> shutdownNow() {
+        shutdown.compareAndSet(false, true);
         return Collections.EMPTY_LIST;
     }
 
     @Override
     public boolean isShutdown() {
-        return false;
+        return shutdown.get();
     }
 
     @Override
     public boolean isTerminated() {
-        return false;
+        return shutdown.get();
     }
 
     @Override
     public boolean awaitTermination(long timeout, TimeUnit unit) {
-        return false;
+        shutdown.compareAndSet(false, true);
+        return true;
     }
 }