diff --git a/src/Illuminate/Contracts/Container/Container.php b/src/Illuminate/Contracts/Container/Container.php
index 1b8bb6407934..710e7b15bb5d 100644
--- a/src/Illuminate/Contracts/Container/Container.php
+++ b/src/Illuminate/Contracts/Container/Container.php
@@ -163,6 +163,15 @@ public function call($callback, array $parameters = [], $defaultMethod = null);
      */
     public function resolved($abstract);
 
+    /**
+     * Register a new before resolving callback.
+     *
+     * @param  \Closure|string  $abstract
+     * @param  \Closure|null  $callback
+     * @return void
+     */
+    public function beforeResolving($abstract, Closure $callback = null);
+
     /**
      * Register a new resolving callback.
      *