diff --git a/runtime/tutor b/runtime/tutor
index 313a14a1..04ea8fcd 100644
--- a/runtime/tutor
+++ b/runtime/tutor
@@ -520,7 +520,7 @@ _________________________________________________________________
  6. Type , to remove the second cursor.
 
  --> I like to eat apples since my favorite fruit is apples.
-     I like to eat oranges since my favourite fruit is oranges.
+     I like to eat oranges since my favorite fruit is oranges.