diff --git a/src/nbi/service/rest_server/nbi_plugins/etsi_bwm/Tools.py b/src/nbi/service/rest_server/nbi_plugins/etsi_bwm/Tools.py
index 4d04c2d18b0c17510589a65d30029f96f69dfa15..70dbaec317f3fdd2939f19a7cbbb5f00a232c0f9 100644
--- a/src/nbi/service/rest_server/nbi_plugins/etsi_bwm/Tools.py
+++ b/src/nbi/service/rest_server/nbi_plugins/etsi_bwm/Tools.py
@@ -12,9 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import json
-import logging
-import time
+import json, logging, re, time
 from decimal import ROUND_HALF_EVEN, Decimal
 from flask.json import jsonify
 from common.proto.context_pb2 import (