diff --git a/include/fluent-bit/flb_aws_util.h b/include/fluent-bit/flb_aws_util.h
index c7ad2a4c3c3..96b6d3aedf9 100644
--- a/include/fluent-bit/flb_aws_util.h
+++ b/include/fluent-bit/flb_aws_util.h
@@ -81,7 +81,6 @@ struct flb_aws_client {
     char *proxy;
     int flags;
     flb_sds_t extra_user_agent;
-    int free_user_agent;
 
     /*
      * Additional headers which will be added to all requests.