diff --git a/dev/ProgressBar/InteractionTests/ProgressBarTests.cs b/dev/ProgressBar/InteractionTests/ProgressBarTests.cs
index cc4977c91a..a6766a34e2 100644
--- a/dev/ProgressBar/InteractionTests/ProgressBarTests.cs
+++ b/dev/ProgressBar/InteractionTests/ProgressBarTests.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See LICENSE in the project root for license information.
 
 using System;
@@ -199,10 +199,10 @@ public void ChangeStateTest()
 
                 ToggleButton showPausedCheckBox = FindElement.ByName<ToggleButton>("ShowPausedCheckBox");
                 ToggleButton showErrorCheckBox = FindElement.ByName<ToggleButton>("ShowErrorCheckBox");
-                ToggleButton isIndeterminateCheckBox = FindElement.ByName<ToggleButton>("ShowIsDeterminateCheckBox");
+                ToggleButton isIndeterminateCheckBox = FindElement.ByName<ToggleButton>("ShowIsIndeterminateCheckBox");
                 TextBlock showPausedText = FindElement.ByName<TextBlock>("ShowPausedText");
                 TextBlock showErrorText = FindElement.ByName<TextBlock>("ShowErrorText");
-                TextBlock isIndeterminateText = FindElement.ByName<TextBlock>("ShowIsDeterminateText");
+                TextBlock isIndeterminateText = FindElement.ByName<TextBlock>("ShowIsIndeterminateText");
                 TextBlock visualStateText = FindElement.ByName<TextBlock>("VisualStateText");
 
                 Verify.IsFalse(Convert.ToBoolean(showPausedText.DocumentText));
@@ -374,10 +374,10 @@ public void ReTemplateChangeStateTest()
 
                 ToggleButton showPausedCheckBox = FindElement.ByName<ToggleButton>("ShowPausedCheckBox");
                 ToggleButton showErrorCheckBox = FindElement.ByName<ToggleButton>("ShowErrorCheckBox");
-                ToggleButton isIndeterminateCheckBox = FindElement.ByName<ToggleButton>("ShowIsDeterminateCheckBox");
+                ToggleButton isIndeterminateCheckBox = FindElement.ByName<ToggleButton>("ShowIsIndeterminateCheckBox");
                 TextBlock showPausedText = FindElement.ByName<TextBlock>("ShowPausedText");
                 TextBlock showErrorText = FindElement.ByName<TextBlock>("ShowErrorText");
-                TextBlock isIndeterminateText = FindElement.ByName<TextBlock>("ShowIsDeterminateText");
+                TextBlock isIndeterminateText = FindElement.ByName<TextBlock>("ShowIsIndeterminateText");
                 TextBlock visualStateText = FindElement.ByName<TextBlock>("VisualStateText");
 
                 Verify.IsFalse(Convert.ToBoolean(showPausedText.DocumentText));
diff --git a/dev/ProgressBar/TestUI/ProgressBarPage.xaml b/dev/ProgressBar/TestUI/ProgressBarPage.xaml
index 175243ebb9..f6fddcc7ec 100644
--- a/dev/ProgressBar/TestUI/ProgressBarPage.xaml
+++ b/dev/ProgressBar/TestUI/ProgressBarPage.xaml
@@ -1,4 +1,4 @@
-<!-- Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License. See LICENSE in the project root for license information. -->
+<!-- Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License. See LICENSE in the project root for license information. -->
 <local:TestPage
     x:Class="MUXControlsTestApp.ProgressBarPage"
     x:Name="ProgressBarTestPage"
@@ -36,7 +36,7 @@
                 VerticalAlignment="Center"
                 AutomationProperties.Name="TestProgressBar"
                 HorizontalAlignment="Left"
-                IsIndeterminate="{x:Bind ShowIsDeterminateCheckBox.IsChecked, Converter={StaticResource NullableBooleanToBooleanConverter}, Mode=OneWay}"
+                IsIndeterminate="{x:Bind ShowIsIndeterminateCheckBox.IsChecked, Converter={StaticResource NullableBooleanToBooleanConverter}, Mode=OneWay}"
                 ShowPaused="{x:Bind ShowPausedCheckBox.IsChecked, Converter={StaticResource NullableBooleanToBooleanConverter}, Mode=OneWay}"
                 ShowError="{x:Bind ShowErrorCheckBox.IsChecked, Converter={StaticResource NullableBooleanToBooleanConverter}, Mode=OneWay}"/>
         </StackPanel>
@@ -95,7 +95,7 @@
                 <TextBlock Text="States"/>
                 <CheckBox x:Name="ShowPausedCheckBox" AutomationProperties.Name="ShowPausedCheckBox" Content="ShowPaused" />
                 <CheckBox x:Name="ShowErrorCheckBox" AutomationProperties.Name="ShowErrorCheckBox"  Content="ShowError"/>
-                <CheckBox x:Name="ShowIsDeterminateCheckBox" AutomationProperties.Name="ShowIsDeterminateCheckBox" Content="IsDeterminate"/>
+                <CheckBox x:Name="ShowIsIndeterminateCheckBox" AutomationProperties.Name="ShowIsIndeterminateCheckBox" Content="IsIndeterminate"/>
             </StackPanel>
 
             <StackPanel Style="{ThemeResource StandardGroupingStackPanel}" Margin="0,16,0,0">
@@ -123,7 +123,7 @@
             <TextBlock AutomationProperties.Name="ShowErrorText" Text="{x:Bind ShowErrorCheckBox.IsChecked, Mode=OneWay}"/>
 
             <TextBlock Text="Is indeterminate:" Margin="0, 20, 0, 0" FontSize="20"/>
-            <TextBlock AutomationProperties.Name="ShowIsDeterminateText" Text="{x:Bind ShowIsDeterminateCheckBox.IsChecked, Mode=OneWay}"/>
+            <TextBlock AutomationProperties.Name="ShowIsIndeterminateText" Text="{x:Bind ShowIsIndeterminateCheckBox.IsChecked, Mode=OneWay}"/>
 
             <TextBlock x:Name="VisualStateText" AutomationProperties.Name="VisualStateText" Margin="0, 20, 0, 0" />
             <Button x:Name="NavigateToReTemplatePage" AutomationProperties.Name="NavigateToReTemplatePage">Progress Bar Re-Template Page</Button>
diff --git a/dev/ProgressBar/TestUI/ProgressBarReTemplatePage.xaml b/dev/ProgressBar/TestUI/ProgressBarReTemplatePage.xaml
index 56611d3ef7..8fe623dd26 100644
--- a/dev/ProgressBar/TestUI/ProgressBarReTemplatePage.xaml
+++ b/dev/ProgressBar/TestUI/ProgressBarReTemplatePage.xaml
@@ -1,4 +1,4 @@
-<local:TestPage
+<local:TestPage
     x:Class="MUXControlsTestApp.ProgressBarReTemplatePage"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
@@ -313,7 +313,7 @@
                 VerticalAlignment="Center"
                 AutomationProperties.Name="TestProgressBar"
                 HorizontalAlignment="Left"
-                IsIndeterminate="{x:Bind ShowIsDeterminateCheckBox.IsChecked, Converter={StaticResource NullableBooleanToBooleanConverter}, Mode=OneWay}"
+                IsIndeterminate="{x:Bind ShowIsIndeterminateCheckBox.IsChecked, Converter={StaticResource NullableBooleanToBooleanConverter}, Mode=OneWay}"
                 ShowPaused="{x:Bind ShowPausedCheckBox.IsChecked, Converter={StaticResource NullableBooleanToBooleanConverter}, Mode=OneWay}"
                 ShowError="{x:Bind ShowErrorCheckBox.IsChecked, Converter={StaticResource NullableBooleanToBooleanConverter}, Mode=OneWay}"/>
         </StackPanel>
@@ -372,7 +372,7 @@
                 <TextBlock Text="States"/>
                 <CheckBox x:Name="ShowPausedCheckBox" AutomationProperties.Name="ShowPausedCheckBox" Content="ShowPaused" />
                 <CheckBox x:Name="ShowErrorCheckBox" AutomationProperties.Name="ShowErrorCheckBox"  Content="ShowError"/>
-                <CheckBox x:Name="ShowIsDeterminateCheckBox" AutomationProperties.Name="ShowIsDeterminateCheckBox" Content="IsDeterminate"/>
+                <CheckBox x:Name="ShowIsIndeterminateCheckBox" AutomationProperties.Name="ShowIsIndeterminateCheckBox" Content="IsIndeterminate"/>
             </StackPanel>
 
             <StackPanel Style="{ThemeResource StandardGroupingStackPanel}" Margin="0,16,0,0">
@@ -400,7 +400,7 @@
             <TextBlock AutomationProperties.Name="ShowErrorText" Text="{x:Bind ShowErrorCheckBox.IsChecked, Mode=OneWay}"/>
 
             <TextBlock Text="Is indeterminate:" Margin="0, 20, 0, 0" FontSize="20"/>
-            <TextBlock AutomationProperties.Name="ShowIsDeterminateText" Text="{x:Bind ShowIsDeterminateCheckBox.IsChecked, Mode=OneWay}"/>
+            <TextBlock AutomationProperties.Name="ShowIsIndeterminateText" Text="{x:Bind ShowIsIndeterminateCheckBox.IsChecked, Mode=OneWay}"/>
 
             <TextBlock x:Name="VisualStateText" AutomationProperties.Name="VisualStateText" Margin="0, 20, 0, 0"/>
         </StackPanel>