diff --git a/rt/transports/http-hc5/src/main/java/org/apache/cxf/transport/http/asyncclient/hc5/CXFHttpAsyncRequestProducer.java b/rt/transports/http-hc5/src/main/java/org/apache/cxf/transport/http/asyncclient/hc5/CXFHttpAsyncRequestProducer.java
index 896dcfd68c4..83eed5276e9 100644
--- a/rt/transports/http-hc5/src/main/java/org/apache/cxf/transport/http/asyncclient/hc5/CXFHttpAsyncRequestProducer.java
+++ b/rt/transports/http-hc5/src/main/java/org/apache/cxf/transport/http/asyncclient/hc5/CXFHttpAsyncRequestProducer.java
@@ -94,7 +94,7 @@ private void resetRequest() {
 
     @Override
     public int available() {
-        return 0;
+        return Integer.MAX_VALUE;
     }
 
     @Override