diff --git a/sinqhttpopt.c b/sinqhttpopt.c
index ac1814a..4637de1 100644
--- a/sinqhttpopt.c
+++ b/sinqhttpopt.c
@@ -371,7 +371,11 @@ static int processHeader(Ascon *a)
 	}
 	DynStringCapacity(a->rdBuffer,pHttp->bytesExpected);
 
-	return 1;
+	if(pHttp->bytesExpected < 0){
+    return 0;
+  } else {
+    return 1;
+  }
 }
 /*---------------------------------------------------------------------*/
 static int HttpHandler(Ascon * a)