diff --git a/extensions/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/standalone/VertxOutputStream.java b/extensions/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/standalone/VertxOutputStream.java
index ea3e339db0d7b..3dd4255d70d08 100644
--- a/extensions/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/standalone/VertxOutputStream.java
+++ b/extensions/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/standalone/VertxOutputStream.java
@@ -142,11 +142,7 @@ private CompletionStage<Void> asyncFlush(boolean isLast) {
         if (pooledBuffer != null) {
             ByteBuf sentBuffer = pooledBuffer;
             pooledBuffer = null;
-            CompletionStage<Void> ret = response.writeNonBlocking(sentBuffer, isLast);
-            return ret.whenComplete((v, t) -> {
-                if (t != null)
-                    sentBuffer.release();
-            });
+            return response.writeNonBlocking(sentBuffer, isLast);
         }
         return CompletableFuture.completedFuture(null);
     }