diff --git a/src/pycbsdk/cbhw/packet/abstract.py b/src/pycbsdk/cbhw/packet/abstract.py
index 0872b6d..3d2e068 100644
--- a/src/pycbsdk/cbhw/packet/abstract.py
+++ b/src/pycbsdk/cbhw/packet/abstract.py
@@ -2,6 +2,15 @@
 from ctypes import *
 import struct
 import numpy as np
+
+
+class classproperty(object):
+    def __init__(self, f):
+        self.f = f
+
+    def __get__(self, obj, owner):
+        return self.f(owner)
+
 import numpy.typing
 from .common import (
     CBPacketType,
diff --git a/src/pycbsdk/cbhw/packet/header/v311.py b/src/pycbsdk/cbhw/packet/header/v311.py
index 8025b6f..80d6433 100644
--- a/src/pycbsdk/cbhw/packet/header/v311.py
+++ b/src/pycbsdk/cbhw/packet/header/v311.py
@@ -1,6 +1,9 @@
 from ctypes import *
 
 
+from ..abstract import classproperty
+
+
 class CBPacketHeader(Structure):
     _pack_ = 1
     _fields_ = [
@@ -13,7 +16,6 @@ class CBPacketHeader(Structure):
         ),  # Number of 32-bit elements in packet body. * 4 to get number of bytes.
     ]
 
-    @classmethod
-    @property
+    @classproperty
     def HEADER_FORMAT(cls):
         return "<LHBB"
diff --git a/src/pycbsdk/cbhw/packet/header/v40.py b/src/pycbsdk/cbhw/packet/header/v40.py
index 9dd5a10..e667e49 100644
--- a/src/pycbsdk/cbhw/packet/header/v40.py
+++ b/src/pycbsdk/cbhw/packet/header/v40.py
@@ -1,4 +1,5 @@
 from ctypes import *
+from ..abstract import classproperty
 
 
 class CBPacketHeader(Structure):
@@ -15,7 +16,6 @@ class CBPacketHeader(Structure):
         ("reserved", 2 * c_uint8),
     ]
 
-    @classmethod
-    @property
+    @classproperty
     def HEADER_FORMAT(cls):
         return "<QHBHBH"
diff --git a/src/pycbsdk/cbhw/packet/header/v41.py b/src/pycbsdk/cbhw/packet/header/v41.py
index ee8654e..421a8e4 100644
--- a/src/pycbsdk/cbhw/packet/header/v41.py
+++ b/src/pycbsdk/cbhw/packet/header/v41.py
@@ -1,4 +1,5 @@
 from ctypes import *
+from ..abstract import classproperty
 from ..common import print_pretty
 
 
@@ -17,7 +18,6 @@ class CBPacketHeader(Structure):
         ("reserved", c_uint8),  # Changed in this version; used to be 2 * c_uint8
     ]
 
-    @classmethod
-    @property
+    @classproperty
     def HEADER_FORMAT(cls):
         return "<QHHHBB"