diff --git a/ConfusedPolarBear.Plugin.IntroSkipper/Data/Intro.cs b/ConfusedPolarBear.Plugin.IntroSkipper/Data/Intro.cs
index 8df7e79..fcfa893 100644
--- a/ConfusedPolarBear.Plugin.IntroSkipper/Data/Intro.cs
+++ b/ConfusedPolarBear.Plugin.IntroSkipper/Data/Intro.cs
@@ -9,7 +9,7 @@ namespace ConfusedPolarBear.Plugin.IntroSkipper.Data;
 /// Result of fingerprinting and analyzing two episodes in a season.
 /// All times are measured in seconds relative to the beginning of the media file.
 /// </summary>
-[DataContract]
+[DataContract(Namespace = "http://schemas.datacontract.org/2004/07/ConfusedPolarBear.Plugin.IntroSkipper")]
 public class Intro
 {
     /// <summary>
diff --git a/ConfusedPolarBear.Plugin.IntroSkipper/XmlSerializationHelper.cs b/ConfusedPolarBear.Plugin.IntroSkipper/XmlSerializationHelper.cs
index b7d90ec..c8c168c 100644
--- a/ConfusedPolarBear.Plugin.IntroSkipper/XmlSerializationHelper.cs
+++ b/ConfusedPolarBear.Plugin.IntroSkipper/XmlSerializationHelper.cs
@@ -73,6 +73,14 @@ namespace ConfusedPolarBear.Plugin.IntroSkipper
                         // Save the modified XML document
                         xmlDoc.Save(filePath);
                     }
+
+                    // undo namespace change
+                    if (xmlDoc.DocumentElement.NamespaceURI == "http://schemas.datacontract.org/2004/07/ConfusedPolarBear.Plugin.IntroSkipper.Data")
+                    {
+                        xmlDoc.DocumentElement.SetAttribute("xmlns", "http://schemas.datacontract.org/2004/07/ConfusedPolarBear.Plugin.IntroSkipper");
+                        // Save the modified XML document
+                        xmlDoc.Save(filePath);
+                    }
                 }
                 catch (XmlException ex)
                 {