diff --git a/fillpdf.module b/fillpdf.module
index 0fc1cb5d79670544ac08c761314c113061b17c94..e69659609bcf8acaff451dd3bceb9d963312a419 100644
--- a/fillpdf.module
+++ b/fillpdf.module
@@ -1062,6 +1062,8 @@ function _fillpdf_build_options_object($force_download, $flatten, $fillpdf_info,
 /**
  * Figure out what to do with the PDF and do it.
  *
+ * Normally, this calls drupal_exit(). In error conditions, it returns void.
+ *
  * @param object $fillpdf_object
  *   Metadata object, usually generated by _fillpdf_build_options_object().
  * @param string $action
@@ -1075,9 +1077,6 @@ function _fillpdf_build_options_object($force_download, $flatten, $fillpdf_info,
  *   to the user's browser.
  *
  *   Here, specifically, it's for generating the filename of the handled PDF.
- *
- * @return null
- *   Normally, this calls drupal_exit(). In error conditions, it returns NULL.
  */
 function fillpdf_merge_perform_pdf_action($fillpdf_object, $action = 'download', $force_download = FALSE) {
   $pdf_info = $fillpdf_object->info;