diff --git a/src/Composer/Package/AliasPackage.php b/src/Composer/Package/AliasPackage.php
index cf4da14ba..183f2c740 100644
--- a/src/Composer/Package/AliasPackage.php
+++ b/src/Composer/Package/AliasPackage.php
@@ -245,6 +245,10 @@ class AliasPackage extends BasePackage implements CompletePackageInterface
     {
         return $this->aliasOf->getDistReference();
     }
+    public function setDistReference($reference)
+    {
+        return $this->aliasOf->setDistReference($reference);
+    }
     public function getDistSha1Checksum()
     {
         return $this->aliasOf->getDistSha1Checksum();