diff --git a/py_gen/templates/_unpack.py b/py_gen/templates/_unpack.py
index 6bf0db6..7f3ce2a 100644
--- a/py_gen/templates/_unpack.py
+++ b/py_gen/templates/_unpack.py
@@ -52,3 +52,6 @@
         obj.${m.name} = ${m.oftype.gen_unpack_expr(reader_expr)}
 ::     #endif
 :: #endfor
+:: if ofclass.name == 'of_match_v3':
+        reader.skip((_length + 7)/8*8 - _length)
+:: #endif
diff --git a/py_gen/tests/of12.py b/py_gen/tests/of12.py
index 6e1486c..4a6c7c6 100644
--- a/py_gen/tests/of12.py
+++ b/py_gen/tests/of12.py
@@ -158,18 +158,11 @@
 
     def test_serialization(self):
         expected_failures = [
-            ofp.common.flow_stats_entry,
             ofp.common.group_desc_stats_entry,
             ofp.common.table_stats_entry,
-            ofp.message.flow_add,
-            ofp.message.flow_delete,
-            ofp.message.flow_delete_strict,
-            ofp.message.flow_modify,
-            ofp.message.flow_modify_strict,
             ofp.message.group_desc_stats_reply,
             ofp.message.group_mod,
             ofp.message.group_stats_reply,
-            ofp.message.packet_in,
         ]
         for klass in self.klasses:
             def fn():
diff --git a/py_gen/tests/of13.py b/py_gen/tests/of13.py
index e471b1e..76231fa 100644
--- a/py_gen/tests/of13.py
+++ b/py_gen/tests/of13.py
@@ -137,18 +137,11 @@
 
     def test_serialization(self):
         expected_failures = [
-            ofp.common.flow_stats_entry,
             ofp.common.group_desc_stats_entry,
-            ofp.message.flow_add,
-            ofp.message.flow_delete,
-            ofp.message.flow_delete_strict,
-            ofp.message.flow_modify,
-            ofp.message.flow_modify_strict,
             ofp.message.group_desc_stats_reply,
             ofp.message.group_mod,
             ofp.message.group_stats_reply,
             ofp.message.meter_stats_reply,
-            ofp.message.packet_in,
             ofp.message.table_features_stats_reply,
             ofp.message.table_features_stats_request,
         ]