diff --git a/lesson-templates/lesson-13-paths.tm b/lesson-templates/lesson-13-paths.tm
index e582846..2a59910 100644
--- a/lesson-templates/lesson-13-paths.tm
+++ b/lesson-templates/lesson-13-paths.tm
@@ -25,7 +25,7 @@ func main():
     = "???"
 
     >> path:parent():child("other-file.txt")
-    = /???
+    = (/???)
 
     >> dir := (/tmp/test-*.txt):glob()
     = [???]
diff --git a/lesson-templates/lesson-14-langs.tm b/lesson-templates/lesson-14-langs.tm
index 6bb1911..250e056 100644
--- a/lesson-templates/lesson-14-langs.tm
+++ b/lesson-templates/lesson-14-langs.tm
@@ -5,7 +5,7 @@ lang HTML:
 
     # Custom escaping rules can be created with `convert`
     convert(t:Text -> HTML):
-        t = t:replace_all({$/&/="&amp;", $/</="&lt;", $/>/="&gt;"})
+        t = t:translate({"&"="&amp;", "<"="&lt;", ">"="&gt;"})
         return HTML.from_text(t)
 
     func paragraph(content:HTML -> HTML):