diff --git a/CHANGELIST.md b/CHANGELIST.md
index 9812ef05..2a2801e7 100644
--- a/CHANGELIST.md
+++ b/CHANGELIST.md
@@ -24,6 +24,7 @@
 - Fix failing tests
 - Remove debug symbols in release builds (Deterous)
 - Allow nullability for modern .NET
+- Fix failing tests
 
 ### 2.6.6 (2023-10-04)
 
diff --git a/MPF.Core/InfoTool.cs b/MPF.Core/InfoTool.cs
index e8220078..02791e64 100644
--- a/MPF.Core/InfoTool.cs
+++ b/MPF.Core/InfoTool.cs
@@ -1018,7 +1018,7 @@ namespace MPF.Core
             switch (mediaType)
             {
                 case MediaType.DVD:
-                    if (layerbreak != default)
+                    if (layerbreak != default && layerbreak != default(long))
                         return $"{mediaType.LongName()}-9";
                     else
                         return $"{mediaType.LongName()}-5";