diff --git a/h5p/classes/editor.php b/h5p/classes/editor.php
index feb3fe895e7..0dd5f01757a 100644
--- a/h5p/classes/editor.php
+++ b/h5p/classes/editor.php
@@ -444,6 +444,15 @@ class editor {
         $langcontent = substr($langcontent, 0, strpos($langcontent, '}', -0) + 1);
         $langcontent = substr($langcontent, strpos($langcontent, '{'));
 
+        // Hack by Joseph Rézeau 14 JANUARY 2024. Until H5P OER hub is made available, temporary hack removes un-used filters strings
+        // which cause PHP warning.
+        // Find the position of "filters:"
+        $position = strpos($langcontent, "filters:");
+        // If "filters:" is found, truncate the string just before it
+        if ($position !== false) {
+            $langcontent = substr($langcontent, 0, $position - 2);
+        }
+        
         // Parse the JS language content and get a PHP array.
         $editorstrings = helper::parse_js_array($langcontent);
         foreach ($editorstrings as $key => $value) {