diff --git a/service/port.py b/service/port.py
index b1fd1ddc3..46576ad4a 100644
--- a/service/port.py
+++ b/service/port.py
@@ -59,13 +59,14 @@ try:
 except ImportError:
     from utils.compat import OrderedDict
 
-EFT_SLOT_ORDER = [Slot.LOW, Slot.MED, Slot.HIGH, Slot.RIG, Slot.SUBSYSTEM]
+EFT_SLOT_ORDER = [Slot.LOW, Slot.MED, Slot.HIGH, Slot.RIG, Slot.SUBSYSTEM, Slot.SERVICE]
 INV_FLAGS = {
     Slot.LOW: 11,
     Slot.MED: 19,
     Slot.HIGH: 27,
     Slot.RIG: 92,
-    Slot.SUBSYSTEM: 125
+    Slot.SUBSYSTEM: 125,
+    Slot.SERVICE: 164
 }
 
 INV_FLAG_CARGOBAY = 5