diff --git a/_Sidebar.md b/_Sidebar.md
index ac71ac7..49e3015 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -1,6 +1,6 @@
 # Index
 ### User manual
-- [English](User-Manual)
+- [English](User-manual)
 - French/Français
 - German/Deutch