diff --git a/.changelog/16781.txt b/.changelog/16781.txt
new file mode 100644
index 000000000..708a91d40
--- /dev/null
+++ b/.changelog/16781.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+gateway: **(Enterprise only)** Fix bug where namespace/partition would fail to unmarshal for TCPServices.
+```
diff --git a/agent/structs/config_entry_routes.go b/agent/structs/config_entry_routes.go
index 683ec9f3f..70a306559 100644
--- a/agent/structs/config_entry_routes.go
+++ b/agent/structs/config_entry_routes.go
@@ -556,7 +556,7 @@ func (e *TCPRouteConfigEntry) CanWrite(authz acl.Authorizer) error {
 type TCPService struct {
 	Name string
 
-	acl.EnterpriseMeta
+	acl.EnterpriseMeta `hcl:",squash" mapstructure:",squash"`
 }
 
 func (s TCPService) ServiceName() ServiceName {