diff --git a/app/Filament/Server/Resources/FileResource/Pages/ListFiles.php b/app/Filament/Server/Resources/FileResource/Pages/ListFiles.php
index 309e68754f..9769cd8c25 100644
--- a/app/Filament/Server/Resources/FileResource/Pages/ListFiles.php
+++ b/app/Filament/Server/Resources/FileResource/Pages/ListFiles.php
@@ -545,6 +545,7 @@ protected function getHeaderActions(): array
                 ->form([
                     TextInput::make('searchTerm')
                         ->placeholder('Enter a search term, e.g. *.txt')
+                        ->regex('/^[^*]*\*?[^*]*$/')
                         ->minLength(3),
                 ])
                 ->action(fn ($data) => redirect(SearchFiles::getUrl([