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-rw-r--r--ryu/tests/unit/packet/test_icmpv6.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/ryu/tests/unit/packet/test_icmpv6.py b/ryu/tests/unit/packet/test_icmpv6.py
index 2fe5891a..bc447d4b 100644
--- a/ryu/tests/unit/packet/test_icmpv6.py
+++ b/ryu/tests/unit/packet/test_icmpv6.py
@@ -35,8 +35,8 @@ LOG = logging.getLogger(__name__)
def icmpv6_csum(prev, buf):
- ph = struct.pack('!16s16sBBH', prev.src, prev.dst, 0, prev.nxt,
- prev.payload_length)
+ ph = struct.pack('!16s16sI3xB', prev.src, prev.dst,
+ prev.payload_length, prev.nxt)
h = bytearray(buf)
struct.pack_into('!H', h, 2, 0)