diff --git a/_Sidebar.md b/_Sidebar.md
index 2abacd8..67ecc9c 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -4,7 +4,7 @@
 
 * [Circle](Circle)
 * [Cube](Cube)
-* [Cube Outline](CubeOutline)
+* [Cube Outline](Cube-Outline)
 * [Helix](Helix)
 * [Line](Line)
 * [Polygon](Polygon)