diff --git a/docs/schemas/domain/IfcRailDomain/PropertyEnumerations/PEnum_ComputerUIType.md b/docs/schemas/domain/IfcRailDomain/PropertyEnumerations/PEnum_ComputerUIType.md
index 9f503039f..28a6c23dc 100644
--- a/docs/schemas/domain/IfcRailDomain/PropertyEnumerations/PEnum_ComputerUIType.md
+++ b/docs/schemas/domain/IfcRailDomain/PropertyEnumerations/PEnum_ComputerUIType.md
@@ -21,7 +21,7 @@ Touch tone user interface.
 required category not on scale
 
 ### NOTKNOWN
-Value is unkown
+Value is unknown
 
 ### UNSET
 Value has not been specified