diff --git a/src/Composer/Package/AliasPackage.php b/src/Composer/Package/AliasPackage.php
index 09ed4fb9b..89f197856 100644
--- a/src/Composer/Package/AliasPackage.php
+++ b/src/Composer/Package/AliasPackage.php
@@ -401,4 +401,14 @@ class AliasPackage extends BasePackage implements CompletePackageInterface
     {
         return parent::__toString().' (alias of '.$this->aliasOf->getVersion().')';
     }
+
+    public function setDistUrl($url)
+    {
+        return $this->aliasOf->setDistUrl($url);
+    }
+
+    public function setDistType($type)
+    {
+        return $this->aliasOf->setDistType($type);
+    }
 }
diff --git a/src/Composer/Package/PackageInterface.php b/src/Composer/Package/PackageInterface.php
index 73d2ade41..cb16efa7e 100644
--- a/src/Composer/Package/PackageInterface.php
+++ b/src/Composer/Package/PackageInterface.php
@@ -358,4 +358,32 @@ interface PackageInterface
      * @return array
      */
     public function getTransportOptions();
+
+    /**
+     * @param string $reference
+     *
+     * @return void
+     */
+    public function setSourceReference($reference);
+
+    /**
+     * @param string $url
+     *
+     * @return void
+     */
+    public function setDistUrl($url);
+
+    /**
+     * @param string $type
+     *
+     * @return void
+     */
+    public function setDistType($type);
+
+    /**
+     * @param string $reference
+     *
+     * @return void
+     */
+    public function setDistReference($reference);
 }