diff --git a/readme.md b/readme.md
index 39e1112..a6b9ceb 100644
--- a/readme.md
+++ b/readme.md
@@ -19,6 +19,7 @@ fi
 ```
 
 ## Notes
+- use studly case for model name relationships as JSON keys (example: 'option_group' => 'OptionGroup'). This is important for case sensitive file systems.
 - empty values are skipped
 - the criteria/attributes for updateOrCreate are identified with a preleading underscore
 - nested values represent relationships and are returned using where($key, $value)->first()->id
diff --git a/src/Updater.php b/src/Updater.php
index dc246b7..e1ed17b 100644
--- a/src/Updater.php
+++ b/src/Updater.php
@@ -141,7 +141,7 @@ class Updater
      */
     protected function getModel(string $name)
     {
-        return '\\App\\' . pathinfo($name, PATHINFO_FILENAME);
+        return '\\App\\' . studly_case(pathinfo($name, PATHINFO_FILENAME));
     }
 
     /**