diff --git a/core/attributedef/AttributeHTML.php b/core/attributedef/AttributeHTML.php
new file mode 100644
index 000000000..953e7c9a5
--- /dev/null
+++ b/core/attributedef/AttributeHTML.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * Map a text column (size > ?), containing HTML code, to an attribute
+ *
+ * @package     iTopORM
+ */
+class AttributeHTML extends AttributeLongText
+{
+    /**
+     * Useless constructor, but if not present PHP 7.4.0/7.4.1 is crashing :( (N°2329)
+     *
+     * @see https://www.php.net/manual/fr/language.oop5.decon.php states that child constructor can be ommited
+     * @see https://bugs.php.net/bug.php?id=79010 bug solved in PHP 7.4.9
+     *
+     * @param string $sCode
+     * @param array $aParams
+     *
+     * @throws \Exception
+     * @noinspection SenselessProxyMethodInspection
+     */
+    public function __construct($sCode, $aParams)
+    {
+        parent::__construct($sCode, $aParams);
+    }
+
+    public function GetSQLColumns($bFullSpec = false)
+    {
+        $aColumns = array();
+        $aColumns[$this->Get('sql')] = $this->GetSQLCol();
+        if ($this->GetOptional('format', null) != null) {
+            // Add the extra column only if the property 'format' is specified for the attribute
+            $aColumns[$this->Get('sql') . '_format'] = "ENUM('text','html')";
+            if ($bFullSpec) {
+                $aColumns[$this->Get('sql') . '_format'] .= " DEFAULT 'html'"; // default 'html' is for migrating old records
+            }
+        }
+
+        return $aColumns;
+    }
+
+    /**
+     * The actual formatting of the text: either text (=plain text) or html (= text with HTML markup)
+     *
+     * @return string
+     */
+    public function GetFormat()
+    {
+        return $this->GetOptional('format', 'html'); // Defaults to HTML
+    }
+}
\ No newline at end of file