diff --git a/Aaru.Filters/AppleSingle.cs b/Aaru.Filters/AppleSingle.cs
index 87d837bf0..5245b94df 100644
--- a/Aaru.Filters/AppleSingle.cs
+++ b/Aaru.Filters/AppleSingle.cs
@@ -500,7 +500,7 @@ public sealed partial class AppleSingle : IFilter
 
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     [SwapEndian]
-    struct DOSFileInfo
+    partial struct DOSFileInfo
     {
         public ushort modificationDate;
         public ushort modificationTime;
@@ -513,7 +513,7 @@ public sealed partial class AppleSingle : IFilter
 
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     [SwapEndian]
-    struct Entry
+    partial struct Entry
     {
         public uint id;
         public uint offset;
@@ -526,7 +526,7 @@ public sealed partial class AppleSingle : IFilter
 
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     [SwapEndian]
-    struct FileDates
+    partial struct FileDates
     {
         public uint creationDate;
         public uint modificationDate;
@@ -540,7 +540,7 @@ public sealed partial class AppleSingle : IFilter
 
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     [SwapEndian]
-    struct Header
+    partial struct Header
     {
         public uint magic;
         public uint version;
@@ -555,7 +555,7 @@ public sealed partial class AppleSingle : IFilter
 
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     [SwapEndian]
-    struct MacFileInfo
+    partial struct MacFileInfo
     {
         public uint creationDate;
         public uint modificationDate;
@@ -569,7 +569,7 @@ public sealed partial class AppleSingle : IFilter
 
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     [SwapEndian]
-    struct ProDOSFileInfo
+    partial struct ProDOSFileInfo
     {
         public uint   creationDate;
         public uint   modificationDate;
@@ -585,7 +585,7 @@ public sealed partial class AppleSingle : IFilter
 
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     [SwapEndian]
-    struct UnixFileInfo
+    partial struct UnixFileInfo
     {
         public uint creationDate;
         public uint accessDate;