diff --git a/platform.py b/platform.py
index 227de6a..375f404 100644
--- a/platform.py
+++ b/platform.py
@@ -157,6 +157,8 @@ def _add_default_debug_tools(self, board):
         init_cmds = [
             "set mem inaccessible-by-default off",
             "set arch riscv:rv32",
+            # compatible with only WCH's gdb version, decodes code generated with "xw" correctly
+            "set disassembler-options xw",
             "set remotetimeout unlimited",
             "target extended-remote $DEBUG_PORT",
             "$INIT_BREAK",