diff --git a/jupyter_config.json b/jupyter_config.json
index 1bfa3ff..7fa63a0 100644
--- a/jupyter_config.json
+++ b/jupyter_config.json
@@ -1,5 +1,5 @@
 {
   "VoilaConfiguration": {
-    "file_whitelist": ['.*']
+    "file_whitelist": [".*"]
   }
 }