diff --git a/src/context/service/grpc_server/ContextServiceServicerImpl.py b/src/context/service/grpc_server/ContextServiceServicerImpl.py
index 8bec2698b8ff5d88b6470929d6a721e6210155bd..ec12795bd8948ad93bfd759d222ef18b960bc0e3 100644
--- a/src/context/service/grpc_server/ContextServiceServicerImpl.py
+++ b/src/context/service/grpc_server/ContextServiceServicerImpl.py
@@ -624,7 +624,7 @@ class ContextServiceServicerImpl(ContextServiceServicer):
 
                 db_endpoint : EndPointModel = get_object(self.database, EndPointModel, str_endpoint_key)
 
-                str_slice_endpoint_key = key_to_str([slice_uuid, str_endpoint_key], separator='--')
+                str_slice_endpoint_key = key_to_str([str_slice_key, str_endpoint_key], separator='--')
                 result : Tuple[SliceEndPointModel, bool] = get_or_create_object(
                     self.database, SliceEndPointModel, str_slice_endpoint_key, {
                         'slice_fk': db_slice, 'endpoint_fk': db_endpoint})