diff --git a/index.html b/index.html
index 38687ec..ca93d1a 100644
--- a/index.html
+++ b/index.html
@@ -32,6 +32,7 @@
wg: "Web Platform Working Group",
wgURI: "https://www.w3.org/WebPlatform/WG/",
wgPatentURI: "https://www.w3.org/2004/01/pp-impl/83482/status",
+ caniuse: "screen-orientation",
};