return code text
diff --git a/src/http/ngx_http_script.h b/src/http/ngx_http_script.h
index 90a4e1a..f7943d3 100644
--- a/src/http/ngx_http_script.h
+++ b/src/http/ngx_http_script.h
@@ -159,7 +159,7 @@
 typedef struct {
     ngx_http_script_code_pt     code;
     uintptr_t                   status;
-    uintptr_t                   null;
+    ngx_http_complex_value_t    text;
 } ngx_http_script_return_code_t;