diff --git a/Module/ModuleManager.php b/Module/ModuleManager.php
index 4e3b7da16..3cca21cda 100644
--- a/Module/ModuleManager.php
+++ b/Module/ModuleManager.php
@@ -482,7 +482,7 @@ class ModuleManager
             }
 
             /* Install receiving */
-            foreach ($installed as $key => $value) {
+            foreach ($this->installed as $key => $value) {
                 $this->installProviding($key, $module);
             }