diff --git a/admin-guide/architecture/accounts-and-groups.md b/admin-guide/architecture/accounts-and-groups.md
index 395bf340..3f4d10cd 100644
--- a/admin-guide/architecture/accounts-and-groups.md
+++ b/admin-guide/architecture/accounts-and-groups.md
@@ -25,6 +25,7 @@ prefix or suffix:
 
 ## UID Allocation
 
+  |                |               |
   |----------------|---------------|
   | Old accounts   |  1000-6000    |
   | GFA accounts   |  10000-30000  |