diff --git a/docs/tutorials/install-extension.md b/docs/tutorials/install-extension.md
index b71d5a58c..cb16e9693 100644
--- a/docs/tutorials/install-extension.md
+++ b/docs/tutorials/install-extension.md
@@ -46,7 +46,7 @@ For information on determining the ServiceAccount's permission, please see [Deri
         sourceType: Catalog
         catalog:
           packageName: <package_name>
-          channels: [<channel1>,<channel2]
+          channels: [<channel1>, <channel2>]
           version: "<version>"
     ```