diff --git a/Runtime/Native/iOS/NativeClient.cs b/Runtime/Native/iOS/NativeClient.cs
index 59b67bf6..8676ff51 100644
--- a/Runtime/Native/iOS/NativeClient.cs
+++ b/Runtime/Native/iOS/NativeClient.cs
@@ -129,9 +129,12 @@ public void GetAttributes(Dictionary<string, string> result)
             }
             GetNativeAttributes(out IntPtr pUnmanagedArray, out int keysCount);
 
+            // calculate struct size for current OS.
+            // We multiply by 2 because Entry struct has two pointers
+            var structSize = IntPtr.Size * 2;
             for (int i = 0; i < keysCount; i++)
             {
-                var address = pUnmanagedArray + i * 16;
+                var address = pUnmanagedArray + i * structSize;
                 Entry entry = Marshal.PtrToStructure<Entry>(address);
                 result.Add(entry.Key, entry.Value);
             }