diff --git a/src/AcDream.Core/Items/ClientObjectTable.cs b/src/AcDream.Core/Items/ClientObjectTable.cs
index d8ed56ba..aba45de5 100644
--- a/src/AcDream.Core/Items/ClientObjectTable.cs
+++ b/src/AcDream.Core/Items/ClientObjectTable.cs
@@ -1206,7 +1206,7 @@ public IReadOnlyList<ClientObject> GetEquippedBy(uint wielderId) =>
                 .ToArray()
             : Array.Empty<ClientObject>();
 
-    /// <summary>Whether server listings cover the owner and every nested pack.</summary>
+    /// <summary>Whether server listings cover the owner and every nested pack (a focus needs none).</summary>
     public bool HasCompleteInventory(uint ownerId)
     {
         if (ownerId == 0 || _pendingMoves.Count != 0)
@@ -1225,7 +1225,10 @@ public bool HasCompleteInventory(uint ownerId)
             {
                 if (!_objects.TryGetValue(id, out ClientObject? item))
                     return false;
-                if (IsContainerListMember(item))
+                // A focus takes a container slot but holds nothing, and the
+                // server never sends a listing for one.
+                if (IsContainerListMember(item)
+                    && !InventoryContainerPlacementPolicy.IsFocus(item))
                     pending.Push(id);
             }
         }
diff --git a/tests/AcDream.Core.Tests/Items/InventoryCompletenessTests.cs b/tests/AcDream.Core.Tests/Items/InventoryCompletenessTests.cs
index 00656b51..60cd62bb 100644
--- a/tests/AcDream.Core.Tests/Items/InventoryCompletenessTests.cs
+++ b/tests/AcDream.Core.Tests/Items/InventoryCompletenessTests.cs
@@ -42,4 +42,17 @@ public void EmptyAuthoritativeInventoryIsComplete()
         table.InitializeInventoryManifest(1, Array.Empty<ContainerContentEntry>());
         Assert.True(table.HasCompleteInventory(1));
     }
+
+    [Fact]
+    public void SpellFocusNeverListedDoesNotBlockCompleteness()
+    {
+        // ACE lists a focus (container type 2) in the container slots but
+        // never sends its contents, since a focus holds nothing.
+        var table = new ClientObjectTable();
+        table.InitializeInventoryManifest(1,
+            [new ContainerContentEntry(2, 1), new ContainerContentEntry(3, 2)]);
+        Assert.False(table.HasCompleteInventory(1));
+        table.ReplaceContents(2, Array.Empty<uint>());
+        Assert.True(table.HasCompleteInventory(1));
+    }
 }