diff --git a/nbextensions/usability/limit_output/limit-output.yaml b/nbextensions/usability/limit_output/limit-output.yaml
index c17a8f1..0a789d5 100644
--- a/nbextensions/usability/limit_output/limit-output.yaml
+++ b/nbextensions/usability/limit_output/limit-output.yaml
@@ -15,4 +15,4 @@ Parameters:
 - name: limit_output_message
   description: Message to append when output is limited
   input_type: text
-  default: **OUTPUT MUTED**
+  default: '**OUTPUT MUTED**'