diff --git a/Module.php b/Module.php
index 97d077c..82922c0 100644
--- a/Module.php
+++ b/Module.php
@@ -69,6 +69,14 @@ public function getContentContainerTypes()
         ];
     }
 
+    /**
+     * @inheritdoc
+     */
+    public function getContentClasses(): array
+    {
+        return [File::class];
+    }
+
     /**
      * @inheritdoc
      */
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 2acf020..be5fc92 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -7,6 +7,7 @@ Changelog
 - Fix #180: Use icon `fa-unlock` for public files
 - Fix #184: Display only published content files in the folder "Files from the stream"
 - Fix #186: Rename conflicted not published folder/file on creating/uploading
+- Fix #189: Initialize module content class
 
 0.16.1 - May 1, 2023
 --------------------