diff --git a/src/http/ngx_http_script.h b/src/http/ngx_http_script.h
index abbbf43..3ef4d42 100644
--- a/src/http/ngx_http_script.h
+++ b/src/http/ngx_http_script.h
@@ -76,6 +76,13 @@
 
 
 typedef struct {
+    ngx_http_script_code_pt         code;
+    ngx_http_set_variable_pt        handler;
+    uintptr_t                       data;
+} ngx_http_script_var_handler_code_t;
+
+
+typedef struct {
     ngx_http_script_code_pt          code;
     uintptr_t                        n;
 } ngx_http_script_copy_capture_code_t;
@@ -193,6 +200,7 @@
 void ngx_http_script_complex_value_code(ngx_http_script_engine_t *e);
 void ngx_http_script_value_code(ngx_http_script_engine_t *e);
 void ngx_http_script_set_var_code(ngx_http_script_engine_t *e);
+void ngx_http_script_var_set_handler_code(ngx_http_script_engine_t *e);
 void ngx_http_script_var_code(ngx_http_script_engine_t *e);
 void ngx_http_script_nop_code(ngx_http_script_engine_t *e);