diff --git a/src/playground/index.ejs b/src/playground/index.ejs
index bd88a5be2e7564977f8c18628de0058ce8a1ead0..3d2394d662f8fd3a36b1aef660f568ba4986b4a3 100644
--- a/src/playground/index.ejs
+++ b/src/playground/index.ejs
@@ -9,7 +9,7 @@
         <!-- Sentry error logging to help with finding bugs -->
         <script src="https://cdn.ravenjs.com/3.22.1/raven.min.js" crossorigin="anonymous"></script>
         <script>
-            Raven.config('<%= htmlWebpackPlugin.options.sentryConfig %>').install();
+            Raven.config(<%= htmlWebpackPlugin.options.sentryConfig %>).install();
         </script>
         <!-- /Sentry -->
     <% } %>