diff --git a/src/PSTree/Commands/GetPSTreeCommand.cs b/src/PSTree/Commands/GetPSTreeCommand.cs
index aaae6f3..5e0ce2a 100644
--- a/src/PSTree/Commands/GetPSTreeCommand.cs
+++ b/src/PSTree/Commands/GetPSTreeCommand.cs
@@ -61,7 +61,8 @@ public string[]? LiteralPath
     }
 
     [Parameter]
-    public uint Depth { get; set; } = 3;
+    [ValidateRange(0, int.MaxValue)]
+    public int Depth { get; set; } = 3;
 
     [Parameter]
     public SwitchParameter Recurse { get; set; }