diff --git a/includes/Hooks.php b/includes/Hooks.php
index 1c03514960..5313d21831 100644
--- a/includes/Hooks.php
+++ b/includes/Hooks.php
@@ -148,7 +148,8 @@ class Hooks implements DifferenceEngineBeforeDiffTableHook {
 			->makeConfig( 'visualeditor' );
 		$output = RequestContext::getMain()->getOutput();
 
-		// Return early if not viewing a diff of an allowed type.
+		// Return early if not viewing a diff of an allowed type or
+		// if the diff namespace is NS_SPECIAL (ref. T336582)
 		if ( !ApiVisualEditor::isAllowedContentType( $veConfig, $diff->getTitle()->getContentModel() )
 			|| $output->getActionName() !== 'view' || $diff->getTitle()->getNamespace() == NS_SPECIAL
 		) {