diff --git a/src/proxy.c b/src/proxy.c
index 1279da6f2..8bcc98c0d 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -350,6 +350,7 @@ void free_proxy(struct proxy *p)
 
 	free(p->desc);
 	istfree(&p->fwdfor_hdr_name);
+	istfree(&p->orgto_hdr_name);
 
 	task_destroy(p->task);