diff --git a/compatibility.md b/compatibility.md
index 1b965d8..2c0bbdb 100644
--- a/compatibility.md
+++ b/compatibility.md
@@ -80,6 +80,7 @@ not yet in Ubuntu Utopic (14.10)
 ### GTK+ 3.16
 
 - **GtkSidebar**
+- **GtkGLArea**
 
 ## Cocoa
 ### Mac OS X 10.7