diff --git a/wx/tools/pywxrc.py b/wx/tools/pywxrc.py
index 32c1c8a6..649c0e7c 100644
--- a/wx/tools/pywxrc.py
+++ b/wx/tools/pywxrc.py
@@ -226,7 +226,7 @@ def __init_resources():
 """
 
     ADD_FILE_TO_MEMFS = """\
-    wx.MemoryFSHandler.AddFile('XRC/%(memoryPath)s/%(filename)s', memoryview(%(filename)s))
+    wx.MemoryFSHandler.AddFile('XRC/%(memoryPath)s/%(filename)s', bytearray(%(filename)s))
 """
 
     LOAD_RES_MEMFS = """\