diff --git a/annotations/yo/nested/enumerations.yo b/annotations/yo/nested/enumerations.yo
index 04ec0c3e..74b495b5 100644
--- a/annotations/yo/nested/enumerations.yo
+++ b/annotations/yo/nested/enumerations.yo
@@ -58,7 +58,7 @@ enumeration can be used directly. For example:
         }
     }
         )
-    Ouside of the class tt(DataStructure) the name of the enumeration type is
+    Outside of the class tt(DataStructure) the name of the enumeration type is
 not used to refer to the values of the enumeration. Here the classname is
 sufficient. Only if a variable of the enumeration type is required the name of
 the enumeration type is needed, as illustrated by the following piece of code: