diff --git a/src/Data/QRDataModeInterface.php b/src/Data/QRDataModeInterface.php
index 518159206..321cf60b6 100644
--- a/src/Data/QRDataModeInterface.php
+++ b/src/Data/QRDataModeInterface.php
@@ -21,10 +21,13 @@ interface QRDataModeInterface{
* the current data mode: Number, Alphanum, Kanji, Hanzi, Byte, ECI
*
* tbh I hate this constant here, but it's part of the interface, so I can't just declare it in the abstract class.
- * phan will complain about a PhanAccessOverridesFinalConstant.
+ * (phan will complain about a PhanAccessOverridesFinalConstant)
+ *
+ * @see https://wiki.php.net/rfc/final_class_const
*
* @var int
* @see \chillerlan\QRCode\Common\Mode
+ * @internal do not call this constant from the interface, but rather from one of the child classes
*/
public const DATAMODE = -1;
diff --git a/src/Output/QRMarkupHTML.php b/src/Output/QRMarkupHTML.php
index 5f7a2297e..b85c09df2 100644
--- a/src/Output/QRMarkupHTML.php
+++ b/src/Output/QRMarkupHTML.php
@@ -42,7 +42,7 @@ class QRMarkupHTML extends QRMarkup{
// wrap the snippet into a body when saving to file
if($saveToFile){
$html = sprintf(
- 'QR Code%s',
+ 'QR Code%s',
$this->options->eol.$html
);
}