diff --git a/src/Enum.js b/src/Enum.js
index 77f2cef..5e2ec73 100644
--- a/src/Enum.js
+++ b/src/Enum.js
@@ -19,3 +19,4 @@ export var FONT_FACE = '@font-face'
 export var COUNTER_STYLE = '@counter-style'
 export var FONT_FEATURE_VALUES = '@font-feature-values'
 export var LAYER = '@layer'
+export var SCOPE = '@scope'