diff --git a/Toolkit.Foundation/FileDescriptor.cs b/Toolkit.Foundation/FileDescriptor.cs
index 276d331..3255195 100644
--- a/Toolkit.Foundation/FileDescriptor.cs
+++ b/Toolkit.Foundation/FileDescriptor.cs
@@ -1,4 +1,4 @@
 namespace Toolkit.Foundation;
 
-public record FileDescriptor(string Name, string Path, int Size) :
+public record FileDescriptor(string Name, string Path, long Size) :
     IFileDescriptor;
\ No newline at end of file
diff --git a/Toolkit.Foundation/IFileDescriptor.cs b/Toolkit.Foundation/IFileDescriptor.cs
index f45a4c7..25ef2b2 100644
--- a/Toolkit.Foundation/IFileDescriptor.cs
+++ b/Toolkit.Foundation/IFileDescriptor.cs
@@ -6,5 +6,5 @@ public interface IFileDescriptor
 
     string Path { get; }
 
-    int Size { get; }
+    long Size { get; }
 }