diff --git a/src/AcDream.Core.Net/Messages/GameEvents.cs b/src/AcDream.Core.Net/Messages/GameEvents.cs
index bd28a283..edb98809 100644
--- a/src/AcDream.Core.Net/Messages/GameEvents.cs
+++ b/src/AcDream.Core.Net/Messages/GameEvents.cs
@@ -343,19 +343,24 @@ public static class GameEvents
             BinaryPrimitives.ReadUInt32LittleEndian(payload.Slice(8)));
     }
 
-    /// <summary>0x0022 InventoryPutObjInContainer: server puts item into container slot.</summary>
+    /// <summary>0x0022 InventoryPutObjInContainer: server puts item into container slot.
+    /// 4 fields (ACE GameEventItemServerSaysContainId.cs): itemGuid, containerGuid,
+    /// placement, containerType. ContainerType (0=item,1=container,2=foci) confirmed
+    /// vs holtburger events.rs fixture (slot=3 type=1).</summary>
     public readonly record struct InventoryPutObjInContainer(
         uint ItemGuid,
         uint ContainerGuid,
-        uint Placement);
+        uint Placement,
+        uint ContainerType);
 
     public static InventoryPutObjInContainer? ParsePutObjInContainer(ReadOnlySpan<byte> payload)
     {
-        if (payload.Length < 12) return null;
+        if (payload.Length < 16) return null;
         return new InventoryPutObjInContainer(
             BinaryPrimitives.ReadUInt32LittleEndian(payload),
             BinaryPrimitives.ReadUInt32LittleEndian(payload.Slice(4)),
-            BinaryPrimitives.ReadUInt32LittleEndian(payload.Slice(8)));
+            BinaryPrimitives.ReadUInt32LittleEndian(payload.Slice(8)),
+            BinaryPrimitives.ReadUInt32LittleEndian(payload.Slice(12)));
     }
 
     /// <summary>0x0196 ViewContents: full contents list of a container you opened.
diff --git a/tests/AcDream.Core.Net.Tests/Messages/GameEventsInventoryTests.cs b/tests/AcDream.Core.Net.Tests/Messages/GameEventsInventoryTests.cs
index 5a49b53a..c77f646b 100644
--- a/tests/AcDream.Core.Net.Tests/Messages/GameEventsInventoryTests.cs
+++ b/tests/AcDream.Core.Net.Tests/Messages/GameEventsInventoryTests.cs
@@ -42,4 +42,21 @@ public sealed class GameEventsInventoryTests
     [Fact]
     public void ParseViewContents_truncated_returnsNull()
         => Assert.Null(GameEvents.ParseViewContents(new byte[4]));
+
+    [Fact]
+    public void ParsePutObjInContainer_readsAllFourFields()
+    {
+        var b = new byte[16];
+        BinaryPrimitives.WriteUInt32LittleEndian(b.AsSpan(0), 0x50000A01u); // itemGuid
+        BinaryPrimitives.WriteUInt32LittleEndian(b.AsSpan(4), 0x500000C9u); // containerGuid
+        BinaryPrimitives.WriteUInt32LittleEndian(b.AsSpan(8), 3u);          // placement
+        BinaryPrimitives.WriteUInt32LittleEndian(b.AsSpan(12), 1u);         // containerType
+
+        var p = GameEvents.ParsePutObjInContainer(b);
+        Assert.NotNull(p);
+        Assert.Equal(0x50000A01u, p!.Value.ItemGuid);
+        Assert.Equal(0x500000C9u, p.Value.ContainerGuid);
+        Assert.Equal(3u, p.Value.Placement);
+        Assert.Equal(1u, p.Value.ContainerType);
+    }
 }