--- a/src/http/ngx_http_write_filter.c
+++ b/src/http/ngx_http_write_filter.c
@@ -18,7 +18,7 @@ typedef struct {
 static void *ngx_http_write_filter_create_conf(ngx_pool_t *pool);
 static char *ngx_http_write_filter_merge_conf(ngx_pool_t *pool,
                                               void *parent, void *child);
-static int ngx_http_write_filter_init(ngx_cycle_t *cycle, ngx_log_t *log);
+static int ngx_http_write_filter_init(ngx_cycle_t *cycle);
 
 
 static ngx_command_t ngx_http_write_filter_commands[] = {
@@ -52,8 +52,7 @@ ngx_module_t  ngx_http_write_filter_modu
     ngx_http_write_filter_commands,        /* module directives */
     NGX_HTTP_MODULE,                       /* module type */
     ngx_http_write_filter_init,            /* init module */
-    NULL,                                  /* commit module */
-    NULL                                   /* rollback module */
+    NULL                                   /* init child */
 };
 
 
@@ -189,7 +188,7 @@ static char *ngx_http_write_filter_merge
 }
 
 
-static int ngx_http_write_filter_init(ngx_cycle_t *cycle, ngx_log_t *log)
+static int ngx_http_write_filter_init(ngx_cycle_t *cycle)
 {
     ngx_http_top_body_filter = ngx_http_write_filter;