diff --git a/extensions/resteasy-classic/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/standalone/VertxBlockingOutput.java b/extensions/resteasy-classic/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/standalone/VertxBlockingOutput.java
index 998817a1ccb69..b8801e241e02e 100644
--- a/extensions/resteasy-classic/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/standalone/VertxBlockingOutput.java
+++ b/extensions/resteasy-classic/resteasy/runtime/src/main/java/io/quarkus/resteasy/runtime/standalone/VertxBlockingOutput.java
@@ -69,8 +69,15 @@ Buffer createBuffer(ByteBuf data) {
     public void write(ByteBuf data, boolean last) throws IOException {
         if (last && data == null) {
             request.response().end();
+            //if there is a problem we still try and end, but then throw to report to the caller
+            if (throwable != null) {
+                throw new IOException(throwable);
+            }
             return;
         }
+        if (throwable != null) {
+            throw new IOException(throwable);
+        }
         try {
             //do all this in the same lock
             synchronized (request.connection()) {