diff --git a/CHANGELIST.md b/CHANGELIST.md
index 57919358..add911d0 100644
--- a/CHANGELIST.md
+++ b/CHANGELIST.md
@@ -47,6 +47,7 @@
 - Convert status label to TextBlock
 - Add option for copy protection file output
 - Make protection field user-editable
+- Add warning to tooltip
 
 ### 2.3 (2022-02-05)
 - Start overhauling Redump information pulling, again
diff --git a/MPF/Windows/DiscInformationWindow.xaml b/MPF/Windows/DiscInformationWindow.xaml
index b4126d2c..0821ec7f 100644
--- a/MPF/Windows/DiscInformationWindow.xaml
+++ b/MPF/Windows/DiscInformationWindow.xaml
@@ -165,7 +165,7 @@
                                                         Text="{Binding SubmissionInfo.CommonDiscInfo.Comments, Mode=TwoWay}" TextHeight="50"
                                                         Enter="True" TextWrapping="Wrap" VerticalContentAlignmentValue="Top" />
                                     <controls:UserInput x:Name="GenreTextBox" Label="Genre"/>
-                                    <controls:UserInput x:Name="ProtectionTextBox" Label="Protection"
+                                    <controls:UserInput x:Name="ProtectionTextBox" Label="Protection" ToolTip="CAUTION: Only edit if you know what you are doing!"
                                                         Text="{Binding SubmissionInfo.CopyProtection.Protection, Mode=TwoWay}" TextHeight="75" TextWrapping="Wrap"
                                                         VerticalContentAlignmentValue="Top" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto"/>
                                     <Grid>