diff --git a/app/Http/Requests/Import/PreImportRequest.php b/app/Http/Requests/Import/PreImportRequest.php
index b62acc2ab043..fdfb162e20af 100644
--- a/app/Http/Requests/Import/PreImportRequest.php
+++ b/app/Http/Requests/Import/PreImportRequest.php
@@ -30,7 +30,7 @@ class PreImportRequest extends Request
     {
 
     	return [
-    		'file' => 'required|mimes:csv'
+    		'file' => 'required|file|mimes:csv,txt'
     	];
 
     }