diff --git a/frontend/src/js/misc/wb-format-special-value.js b/frontend/src/js/misc/wb-format-special-value.js
index b4d89b9..ef14033 100644
--- a/frontend/src/js/misc/wb-format-special-value.js
+++ b/frontend/src/js/misc/wb-format-special-value.js
@@ -1,3 +1,5 @@
+import { h } from 'preact';
+
 function wbFormatSpecialValue(value) {
   if (value === null) return (<i>null</i>);
   if (value === undefined) return (<i>undefined</i>);