diff --git a/runtime/tutor b/runtime/tutor
index 8336a516..0e693dc0 100644
--- a/runtime/tutor
+++ b/runtime/tutor
@@ -1087,7 +1087,7 @@ letters! that is not good grammar. you can fix this.
 
  * Type ~ to alternate case of selected letters.
    * Use ` and Alt-` to set the case of selected letters to
-     upper and lower respectively.
+     lower and upper respectively.
 
  * Type S to split selections on regex.