diff --git a/source/2/2.4/2.4.3/Kcalc.rst b/source/2/2.4/2.4.3/Kcalc.rst
index 2c180101..53d1a83f 100644
--- a/source/2/2.4/2.4.3/Kcalc.rst
+++ b/source/2/2.4/2.4.3/Kcalc.rst
@@ -34,7 +34,7 @@ To change the unit that angles are measured in for triginometric units in Kcalc.
 
 The Scientific mode also brings in a menu for many different predetermined comments under the :menuselection:`Constants`.
  
-To store a value in memory press the :guilabel:`M+` Button. To retirve a value from memory press the :guilabel:`MR` button.
+To store a value in memory press the :guilabel:`M+` Button. To retirve a value from memory press the :guilabel:`MR` button. To clear a value from memory press the :guilabel:`MC` button.
 
 .. image:: kcalc-scientific.png