diff --git a/Installation.md b/Installation.md
index 2a0ad11..09027b8 100644
--- a/Installation.md
+++ b/Installation.md
@@ -1,6 +1,6 @@
-# Prerequisites
+# Prerequisites (Desktop)
 
-Ebiten uses `github.com/go-gl/glfw` and as such requires some setup to use OpenGL. See [Installation Steps](https://github.com/go-gl/glfw/blob/master/README.md#installation) for `go-gl/glfw`.
+On desktops, Ebiten uses `github.com/go-gl/glfw` and as such requires some setup to use OpenGL. See [Installation Steps](https://github.com/go-gl/glfw/blob/master/README.md#installation) for `go-gl/glfw`.
 
 # Install