diff --git a/wiki/source/time-zone.md b/wiki/source/time-zone.md
index 17b94da..062651f 100644
--- a/wiki/source/time-zone.md
+++ b/wiki/source/time-zone.md
@@ -1,6 +1,6 @@
 ---
 title: time zones
-category: tutorial
+category: tutorials
 ---
 
 The timezone by default on the server is UTC.