diff --git a/PKHeX.Core/Items/ItemStorage7SM.cs b/PKHeX.Core/Items/ItemStorage7SM.cs
index 59baed90d..563a7f166 100644
--- a/PKHeX.Core/Items/ItemStorage7SM.cs
+++ b/PKHeX.Core/Items/ItemStorage7SM.cs
@@ -208,7 +208,7 @@ public bool IsLegal(InventoryType type, int itemIndex, int itemCount)
         if (items.BinarySearch((ushort)itemIndex) < 0)
             return false;
 
-        return Unreleased.BinarySearch((ushort)itemIndex) >= 0;
+        return Unreleased.BinarySearch((ushort)itemIndex) < 0;
     }
 
     public ReadOnlySpan<ushort> GetItems(InventoryType type) => type switch