diff --git a/reference/errorfunc/functions/error-get-last.xml b/reference/errorfunc/functions/error-get-last.xml
index 24e66e89e5..29f947a87d 100644
--- a/reference/errorfunc/functions/error-get-last.xml
+++ b/reference/errorfunc/functions/error-get-last.xml
@@ -20,8 +20,9 @@
   &reftitle.returnvalues;
   <para>
    Returns an associative array describing the last error with keys "type",
-   "message", "file" and "line". Returns &null; if there hasn't been an error
-   yet.
+   "message", "file" and "line". If the error has been caused by a PHP
+   internal function then the "message" begins with its name.
+   Returns &null; if there hasn't been an error yet.
   </para>
  </refsect1>