diff --git a/src/http_act.c b/src/http_act.c
index 5582085d4..fb77f801b 100644
--- a/src/http_act.c
+++ b/src/http_act.c
@@ -1769,6 +1769,8 @@ static void release_http_redir(struct act_rule *rule)
 	free(redir->cookie_str);
 	list_for_each_entry_safe(lf, lfb, &redir->rdr_fmt, list) {
 		LIST_DELETE(&lf->list);
+		release_sample_expr(lf->expr);
+		free(lf->arg);
 		free(lf);
 	}
 	free(redir);
diff --git a/src/proxy.c b/src/proxy.c
index 8bcc98c0d..e53cc4f72 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -244,6 +244,8 @@ void free_proxy(struct proxy *p)
 		free(rdr->rdr_str);
 		list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
 			LIST_DELETE(&lf->list);
+			release_sample_expr(lf->expr);
+			free(lf->arg);
 			free(lf);
 		}
 		free(rdr);