diff --git a/src/runtime/Types/InterfaceObject.cs b/src/runtime/Types/InterfaceObject.cs
index 2d82392bf..536defd91 100644
--- a/src/runtime/Types/InterfaceObject.cs
+++ b/src/runtime/Types/InterfaceObject.cs
@@ -106,15 +106,34 @@ public static NewReference tp_getattro(BorrowedReference ob, BorrowedReference k
             }
 
             string? name = Runtime.GetManagedString(key);
-            if (name == "__implementation__")
+            if (name != null)
             {
-                return Converter.ToPython(clrObj.inst);
-            }
-            else if (name == "__raw_implementation__")
-            {
-                return CLRObject.GetReference(clrObj.inst);
+                if (name == "__implementation__")
+                {
+                    return Converter.ToPython(clrObj.inst);
+                }
+                else if (name == "__raw_implementation__")
+                {
+                    return CLRObject.GetReference(clrObj.inst);
+                }
+                else
+                {
+                    // try get attr from pure interface wrapper
+                    var value = Runtime.PyObject_GenericGetAttr(ob, key);
+                    if (Exceptions.ErrorOccurred())
+                    {
+                        // if that didn't work, clear errors
+                        // and try get from wrapped object
+                        Exceptions.Clear();
+
+                        using var pyObj = Converter.ToPython(clrObj.inst);
+                        return Runtime.PyObject_GenericGetAttr(pyObj.Borrow(), key);
+                    }
+                    return value;
+                }
             }
 
+
             return Runtime.PyObject_GenericGetAttr(ob, key);
         }
 
diff --git a/tests/test_interface.py b/tests/test_interface.py
index 557e8da80..b626c12b4 100644
--- a/tests/test_interface.py
+++ b/tests/test_interface.py
@@ -61,7 +61,7 @@ def test_explicit_cast_to_interface():
     assert type(i1).__name__ == 'ISayHello1'
     assert hasattr(i1, 'SayHello')
     assert i1.SayHello() == 'hello 1'
-    assert not hasattr(i1, 'HelloProperty')
+    assert hasattr(i1, 'HelloProperty')
     assert i1.__implementation__ == ob
     assert i1.__raw_implementation__ == ob
 
@@ -69,7 +69,7 @@ def test_explicit_cast_to_interface():
     assert type(i2).__name__ == 'ISayHello2'
     assert i2.SayHello() == 'hello 2'
     assert hasattr(i2, 'SayHello')
-    assert not hasattr(i2, 'HelloProperty')
+    assert hasattr(i2, 'HelloProperty')
 
 
 def test_interface_object_returned_through_method():