diff --git a/AppKit/CPScrollView.j b/AppKit/CPScrollView.j
index 55ebb2b09..1990ab511 100644
--- a/AppKit/CPScrollView.j
+++ b/AppKit/CPScrollView.j
@@ -354,6 +354,11 @@
 
 /*!
     Sets the type of border to be drawn around the view.
+    Valid types are:
+        CPNoBorder
+        CPLineBorder
+        CPBezelBorder
+        CPGrooveBorder
 */
 - (void)setBorderType:(CPBorderType)borderType
 {