diff --git a/calendar.go b/calendar.go
index 9ab15d3..5e2a1bb 100644
--- a/calendar.go
+++ b/calendar.go
@@ -53,6 +53,7 @@ const (
 	ComponentPropertyRrule        = ComponentProperty(PropertyRrule)
 	ComponentPropertyAction       = ComponentProperty(PropertyAction)
 	ComponentPropertyTrigger      = ComponentProperty(PropertyTrigger)
+	ComponentPropertyPriority     = ComponentProperty(PropertyPriority)
 )
 
 type Property string