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-rw-r--r--epan/dissectors/packet-mbtcp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/epan/dissectors/packet-mbtcp.c b/epan/dissectors/packet-mbtcp.c
index a6960d2d9c..230497b2b6 100644
--- a/epan/dissectors/packet-mbtcp.c
+++ b/epan/dissectors/packet-mbtcp.c
@@ -1612,7 +1612,7 @@ proto_register_modbus(void)
},
{ &hf_modbus_functioncode,
{ "Function Code", "modbus.func_code",
- FT_UINT8, BASE_DEC, VALS(function_code_vals), 0x0,
+ FT_UINT8, BASE_DEC, VALS(function_code_vals), 0x7F,
NULL, HFILL }
},
{ &hf_modbus_reference,