diff --git a/core/src/avm2/globals/flash/events/FocusEvent.as b/core/src/avm2/globals/flash/events/FocusEvent.as
index 8bd75887f..bdb515556 100644
--- a/core/src/avm2/globals/flash/events/FocusEvent.as
+++ b/core/src/avm2/globals/flash/events/FocusEvent.as
@@ -31,6 +31,7 @@ package flash.events
         public var keyCode: uint;
 
         // Specifies direction of focus for a focusIn event.
+        [API("661")]
         public var direction: String;
 
         // If true, the relatedObject property is set to null for reasons related to security sandboxes.