--- res_ari.c.orig	2017-09-19 18:05:14.000000000 +0200
+++ res_ari.c	2017-10-05 21:47:41.000000000 +0200
@@ -883,7 +883,7 @@
 	RAII_VAR(struct ast_variable *, post_vars, NULL, ast_variables_destroy);
 	struct ast_variable *var;
 	const char *app_name = NULL;
-	RAII_VAR(struct ast_json *, body, ast_json_null(), ast_json_free);
+	RAII_VAR(struct ast_json *, body, ast_json_null(), ast_json_unref);
 	int debug_app = 0;
 
 	if (!response_body) {