diff --git a/xdis/unmarshal.py b/xdis/unmarshal.py
index da454d66..58860880 100644
--- a/xdis/unmarshal.py
+++ b/xdis/unmarshal.py
@@ -134,7 +134,7 @@ def load_code_type(fp, magic_int, bytes_for_s=False, code_objects={}):
     else:
         co_argcount = unpack("<i", fp.read(4))[0]
 
-    if magic_int in (3412, 3413):
+    if magic_int in (3412, 3413, 3422):
         co_posonlyargcount = unpack("<i", fp.read(4))[0]
     else:
         co_posonlyargcount = None
@@ -794,7 +794,6 @@ def load_code_internal(fp, magic_int, bytes_for_s=False, code_objects={}):
     global internStrings, internObjects
 
     b1 = ord(fp.read(1))
-
     save_ref = False
     if b1 & FLAG_REF:
         # Since 3.4, "flag" is the marshal.c name