diff --git a/README.md b/README.md
index dfe0d0782..fb0ee2b8a 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,8 @@ For more detail into how work with Semantic when building a site please [read ou
 * Android 4
 * Blackberry 10
 
+Browser prefixes are present for Internet Explorer 9, but the browser is not officially supported.
+
 ## Community