diff --git a/src/page-file.rkt b/src/page-file.rkt
index 8a166cd..f501eb9 100644
--- a/src/page-file.rkt
+++ b/src/page-file.rkt
@@ -73,7 +73,7 @@
                   "."))
            `""))
      ,(if (string? image-description)
-           `(update-tree-wiki (html->xexp image-description) wikiname)
+           `(update-tree-wiki (html->xexp (preprocess-html-wiki image-description)) wikiname)
            `""))))
 
 (define (page-file req)