--- a/src/ngx_http_lua_headers_in.c	2022-09-15 08:59:08.000000000 +0600
+++ b/src/ngx_http_lua_headers_in.c	2022-10-12 17:27:32.110186592 +0600
@@ -153,7 +153,7 @@
 #endif
 
     { ngx_string("Cookie"),
-                 offsetof(ngx_http_headers_in_t, cookies),
+                 offsetof(ngx_http_headers_in_t, cookie),
                  ngx_http_set_builtin_multi_header },
 
     { ngx_null_string, 0, ngx_http_set_header }