diff --git a/src/Calculator/Views/CalculatorScientificOperators.xaml b/src/Calculator/Views/CalculatorScientificOperators.xaml
index 2e3701a..7935353 100644
--- a/src/Calculator/Views/CalculatorScientificOperators.xaml
+++ b/src/Calculator/Views/CalculatorScientificOperators.xaml
@@ -866,7 +866,9 @@
                       Checked="ShiftButton_Check"
                       Content=""
                       IsEnabledChanged="ShiftButton_IsEnabledChanged"
-                      Unchecked="ShiftButton_Check"/>
+                      Unchecked="ShiftButton_Check"
+                      AllowFocusOnInteraction="False"
+                      />
 
         <controls:CalculatorButton x:Name="PiButton"
                                    x:Uid="piButton"