diff --git a/src/py_client.py b/src/py_client.py
index 5c83e46aba9881628ce15ab4d61c12ae99abda89..113abd55d9cb87ca43f9a3fa7ec587dbd7ff1fb5 100755
--- a/src/py_client.py
+++ b/src/py_client.py
@@ -16,9 +16,11 @@ _py_reserved_words = [ 'None', 'def', 'class', 'and', 'or' ]
 _cardinal_types = {'CARD8':  'B', 'uint8_t': 'B',
                    'CARD16': 'H','uint16_t': 'H',
                    'CARD32': 'I','uint32_t': 'I',
+                   'CARD64': 'L','uint64_t': 'L',
                    'INT8':   'b', 'int8_t':  'b',
                    'INT16':  'h', 'int16_t': 'h',
                    'INT32':  'i', 'int32_t': 'i',
+                   'INT64':  'l', 'int64_t': 'l',
                    'BYTE': 'B',
                    'BOOL': 'B',
                    'char': 'b',