diff --git a/src/service/service/path_computation_element/PathComputationElement.py b/src/service/service/path_computation_element/PathComputationElement.py
index 41a4c5d57722cb59ab3d3e505f9f79e68952ad5d..80316ac8965ebdbed99264127465488a946f6782 100644
--- a/src/service/service/path_computation_element/PathComputationElement.py
+++ b/src/service/service/path_computation_element/PathComputationElement.py
@@ -31,10 +31,10 @@ LOGGER = logging.getLogger(__name__)
 LOGGER.setLevel(logging.INFO)
 
 SUB_SERVICE_TYPES = {
-    DeviceTypeEnum.EMULATED_PACKET_ROUTER.value      : ServiceTypeEnum.SERVICETYPE_L3NM,
-    DeviceTypeEnum.EMULATED_OPTICAL_LINE_SYSTEM.value: ServiceTypeEnum.SERVICETYPE_TAPI_CONNECTIVITY_SERVICE,
-    DeviceTypeEnum.PACKET_ROUTER.value               : ServiceTypeEnum.SERVICETYPE_L3NM,
-    DeviceTypeEnum.OPTICAL_LINE_SYSTEM.value         : ServiceTypeEnum.SERVICETYPE_TAPI_CONNECTIVITY_SERVICE,
+    DeviceTypeEnum.EMULATED_PACKET_ROUTER.value   : ServiceTypeEnum.SERVICETYPE_L3NM,
+    DeviceTypeEnum.EMULATED_OPEN_LINE_SYSTEM.value: ServiceTypeEnum.SERVICETYPE_TAPI_CONNECTIVITY_SERVICE,
+    DeviceTypeEnum.PACKET_ROUTER.value            : ServiceTypeEnum.SERVICETYPE_L3NM,
+    DeviceTypeEnum.OPEN_LINE_SYSTEM.value         : ServiceTypeEnum.SERVICETYPE_TAPI_CONNECTIVITY_SERVICE,
 }
 DEFAULT_SUB_SERVICE_TYPE = ServiceTypeEnum.SERVICETYPE_UNKNOWN