diff --git a/xos/synchronizer/helpers.py b/xos/synchronizer/helpers.py
index d228890..c1ee9fc 100755
--- a/xos/synchronizer/helpers.py
+++ b/xos/synchronizer/helpers.py
@@ -65,8 +65,7 @@
     def find_or_create_dt_si(model_accessor, log, event):
         try:
             dt_si = model_accessor.DtWorkflowDriverServiceInstance.objects.get(
-                # FIXME: in this way we support a single UNI port per ONU
-                serial_number=event["serialNumber"].split("-")[0]
+                serial_number=event["serialNumber"]
             )
             log.debug("DtHelpers: Found existing DtWorkflowDriverServiceInstance", si=dt_si)
         except IndexError: