diff --git a/protected/humhub/components/Module.php b/protected/humhub/components/Module.php
index 175b06e9e1..2eefb6e973 100644
--- a/protected/humhub/components/Module.php
+++ b/protected/humhub/components/Module.php
@@ -48,7 +48,7 @@ class Module extends \yii\base\Module
 
         // Set settings component
         $this->set('settings', [
-            'class' => SettingsManager::className(),
+            'class' => SettingsManager::class,
             'moduleId' => $this->id
         ]);
     }
diff --git a/protected/humhub/components/ModuleManager.php b/protected/humhub/components/ModuleManager.php
index ad5a27193e..4be8696308 100644
--- a/protected/humhub/components/ModuleManager.php
+++ b/protected/humhub/components/ModuleManager.php
@@ -244,6 +244,21 @@ class ModuleManager extends Component
         return (array_key_exists($id, $this->modules));
     }
 
+    /**
+     * Returns weather or not the given module id belongs to an core module.
+     *
+     * @return bool
+     * @since 1.3.8
+     */
+    public function isCoreModule($id)
+    {
+        if(!$this->hasModule($id)) {
+            return false;
+        }
+
+        return (in_array(get_class($this->getModule($id)), $this->coreModules));
+    }
+
     /**
      * Returns a module instance by id
      *
diff --git a/protected/humhub/docs/CHANGELOG.md b/protected/humhub/docs/CHANGELOG.md
index 9182a32de3..303f407cad 100644
--- a/protected/humhub/docs/CHANGELOG.md
+++ b/protected/humhub/docs/CHANGELOG.md
@@ -7,6 +7,7 @@ HumHub Change Log
 ---------------------------
 
 - Fix #3359: Weekly summary e-mails are not sent in default configuration
+- Fix: Space module permission configuration of non installed space modules visible in permission grid
 
 
 1.3.7  (October 23, 2018)
diff --git a/protected/humhub/modules/content/components/ContentContainerPermissionManager.php b/protected/humhub/modules/content/components/ContentContainerPermissionManager.php
index 8c161a202b..89f2316c5f 100644
--- a/protected/humhub/modules/content/components/ContentContainerPermissionManager.php
+++ b/protected/humhub/modules/content/components/ContentContainerPermissionManager.php
@@ -11,6 +11,7 @@ namespace humhub\modules\content\components;
 use humhub\modules\user\components\PermissionManager;
 use humhub\modules\content\models\ContentContainerPermission;
 use humhub\libs\BasePermission;
+use Yii;
 
 /**
  * @inheritdoc
@@ -42,7 +43,7 @@ class ContentContainerPermissionManager extends PermissionManager
      */
     protected function getModulePermissions(\yii\base\Module $module)
     {
-        if ($module instanceof \humhub\components\Module) {
+        if ($module instanceof \humhub\components\Module && (Yii::$app->moduleManager->isCoreModule($module->id) || $this->contentContainer->isModuleEnabled($module->id))) {
             return $module->getPermissions($this->contentContainer);
         }
         return [];