diff --git a/dm/_utils/terror_gen/errors_release.txt b/dm/_utils/terror_gen/errors_release.txt
index df7b8731364..bf4166af16e 100644
--- a/dm/_utils/terror_gen/errors_release.txt
+++ b/dm/_utils/terror_gen/errors_release.txt
@@ -473,6 +473,7 @@ ErrWorkerDDLLockOpNotFound,[code=40075:class=dm-worker:scope=internal:level=high
 ErrWorkerTLSConfigNotValid,[code=40076:class=dm-worker:scope=internal:level=high], "Message: TLS config not valid, Workaround: Please check the `ssl-ca`, `ssl-cert` and `ssl-key` config in worker configuration file."
 ErrWorkerFailConnectMaster,[code=40077:class=dm-worker:scope=internal:level=high], "Message: cannot join with master endpoints: %v, error: %v, Workaround: Please check network connection of worker and check worker name is unique."
 ErrWorkerRelayConfigChanging,[code=40079:class=dm-worker:scope=internal:level=low], "Message: relay config of worker %s is changed too frequently, last relay source %s:, new relay source %s, Workaround: Please try again later"
+ErrWorkerRouteTableDupMatch,[code=40080:class=dm-worker:scope=internal:level=high], "Message: table %s.%s matches more than one rule, Workaround: please check the route rules in the task config"
 ErrTracerParseFlagSet,[code=42001:class=dm-tracer:scope=internal:level=medium], "Message: parse dm-tracer config flag set"
 ErrTracerConfigTomlTransform,[code=42002:class=dm-tracer:scope=internal:level=medium], "Message: config toml transform, Workaround: Please check the configuration file has correct TOML format."
 ErrTracerConfigInvalidFlag,[code=42003:class=dm-tracer:scope=internal:level=medium], "Message: '%s' is an invalid flag"
diff --git a/dm/errors.toml b/dm/errors.toml
index 22f1bbe6bc7..594c129b664 100644
--- a/dm/errors.toml
+++ b/dm/errors.toml
@@ -2848,6 +2848,12 @@ description = ""
 workaround = "Please try again later"
 tags = ["internal", "low"]
 
+[error.DM-dm-worker-40080]
+message = "table %s.%s matches more than one rule"
+description = ""
+workaround = "please check the route rules in the task config"
+tags = ["internal", "high"]
+
 [error.DM-dm-tracer-42001]
 message = "parse dm-tracer config flag set"
 description = ""