diff --git a/wireshark_gen/field_info.py b/wireshark_gen/field_info.py
index 28f4cdb..4a80a8e 100644
--- a/wireshark_gen/field_info.py
+++ b/wireshark_gen/field_info.py
@@ -111,6 +111,11 @@
     ('of_action_id', 'type'): 'ofp_action_type',
     ('of_instruction_apply_actions', 'type'): 'ofp_instruction_type',
     ('of_instruction_write_actions', 'type'): 'ofp_instruction_type',
+    ('of_group_mod', 'group_type'): 'ofp_group_type',
+    ('of_group_mod', 'type'): 'ofp_type',
+    ('of_group_mod', 'command'): 'ofp_group_mod_commane',
+    ('of_group_mod', 'group_id'): 'ofp_group',
+
 }
 
 # Override oftype_to_base for certain field names
diff --git a/wireshark_gen/templates/_oftype_readers.lua b/wireshark_gen/templates/_oftype_readers.lua
index c258953..0f38c16 100644
--- a/wireshark_gen/templates/_oftype_readers.lua
+++ b/wireshark_gen/templates/_oftype_readers.lua
@@ -134,6 +134,7 @@
     local list = nil
     if not reader2.is_empty() then
         list = subtree:add(fields[field_name], reader2.peek_all(0))
+        list:set_text("List of matches")
     end
     while not reader2.is_empty() do
         local match_len = 4 + reader2.peek(3,1):uint()
@@ -143,7 +144,6 @@
         child_subtree:set_text(info)
     end
     subtree:set_text("OXM")
-    list:set_text("List of matches")
     reader.skip_align()
 end
 
@@ -155,3 +155,21 @@
     local info = dissect_of_instruction(reader, child_subtree, version)
     child_subtree:set_text("Instructions")
 end
+
+function read_list_of_bucket_t(reader, version, subtree, field_name)
+    if reader.is_empty() then
+        return
+    end
+    local child_subtree = subtree:add(fields[field_name], reader.peek_all(0))
+    local info = dissect_of_bucket(reader, child_subtree, version)
+    child_subtree:set_text("Bucket")
+end
+
+function read_of_oxm_t(reader, version, subtree, field_name)
+    if reader.is_empty() then
+        return
+    end
+    local child_subtree = subtree:add(fields[field_name], reader.peek_all(0))
+    local info = dissect_of_oxm(reader, child_subtree, version)
+    child_subtree:set_text(info)
+end
diff --git a/wireshark_gen/templates/openflow.lua b/wireshark_gen/templates/openflow.lua
index 067dbdd..f2791d1 100644
--- a/wireshark_gen/templates/openflow.lua
+++ b/wireshark_gen/templates/openflow.lua
@@ -119,6 +119,12 @@
 :: #endfor
 }
 
+local of_bucket_dissectors = {
+:: for version in ir:
+    [${version}] = dissect_of_bucket_v${version},
+:: #endfor
+}
+
 function dissect_of_message(buf, root)
     local reader = OFReader.new(buf)
     local subtree = root:add(p_of, buf(0))
@@ -168,6 +174,15 @@
     return info
 end
 
+function dissect_of_bucket(reader, subtree, version_val)
+    local info = "unknown"
+    if of_bucket_dissectors[version_val] then
+        info = of_bucket_dissectors[version_val](reader, subtree)
+    end
+
+    return info
+end
+
 -- of dissector function
 function p_of.dissector (buf, pkt, root)
     local offset = 0