-p and --prefix=
diff --git a/src/core/ngx_log.h b/src/core/ngx_log.h
index cd719f3..0785783 100644
--- a/src/core/ngx_log.h
+++ b/src/core/ngx_log.h
@@ -195,7 +195,7 @@
 
 /*********************************/
 
-ngx_log_t *ngx_log_init(void);
+ngx_log_t *ngx_log_init(u_char *prefix);
 ngx_log_t *ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_str_t *name);
 char *ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log);
 void ngx_cdecl ngx_log_abort(ngx_err_t err, const char *fmt, ...);