diff --git a/lib/evaluateSnippets.js b/lib/evaluateSnippets.js
index 0285a51..5f1b71c 100644
--- a/lib/evaluateSnippets.js
+++ b/lib/evaluateSnippets.js
@@ -27,7 +27,7 @@ try {
 } catch (e) {
   transpile = function transpile(code) {
     // Avoid "Identifier '...' has already been declared"
-    return code.replace(/\bconst\s/g, 'var ');
+    return code.replace(/\b(?:const|let)\s/g, 'var ');
   };
 }