diff --git a/documentation_generator.module b/documentation_generator.module
index 51735e2e51d02bc785aa2fc6ba8dfe71610b05e6..55e7fec50939ef0fde4ae45075ed11f39d44f1ac 100644
--- a/documentation_generator.module
+++ b/documentation_generator.module
@@ -16,7 +16,7 @@ function documentation_generator_file_download($uri) {
   $target = $stream_wrapper_manager->getTarget($uri);
 
   if (($scheme == 'private')
-    && ($target == 'documentation.docx' || 'documentation.pdf')
+    && ($target == 'documentation.docx' || $target == 'documentation.pdf')
     && ($user = \Drupal::currentUser())
     && ($user->hasPermission('administer documentation generator'))
   ) {