diff --git a/src/telemetry_frontend/client/TelemetryFrontendClient.py b/src/telemetry_frontend/client/TelemetryFrontendClient.py
index 9ca19bb8ce1aabcaa645d4599151caefbc3e52a0..a215dd408bcd17089045f6631819d89c467b19e0 100644
--- a/src/telemetry_frontend/client/TelemetryFrontendClient.py
+++ b/src/telemetry_frontend/client/TelemetryFrontendClient.py
@@ -20,7 +20,7 @@ from common.proto.context_pb2 import Empty
 from common.tools.grpc.Tools import grpc_message_to_json_string
 from common.tools.client.RetryDecorator import retry, delay_exponential
 from common.proto.telemetry_frontend_pb2_grpc import TelemetryFrontendServiceStub
-from comment.proto.telemetry_frontend_pb2 import Collector, CollectorId, CollectorFilter, CollectorList
+from common.proto.telemetry_frontend_pb2 import Collector, CollectorId, CollectorFilter, CollectorList
 
 LOGGER = logging.getLogger(__name__)
 MAX_RETRIES = 10
@@ -48,21 +48,21 @@ class TelemetryFrontendClient:
         self.stub = None
 
     @RETRY_DECORATOR
-    def StartCollector(self, request : Collector) --> CollectorId:
+    def StartCollector(self, request : Collector) -> CollectorId:
         LOGGER.debug('StartCollector: {:s}'.format(grpc_message_to_json_string(request)))
         response = self.stub.StartCollector(request)
         LOGGER.debug('StartCollector result: {:s}'.format(grpc_message_to_json_string(response)))
         return response
 
     @RETRY_DECORATOR
-    def StopCollector(self, request : CollectorId) --> Empty:
+    def StopCollector(self, request : CollectorId) -> Empty:
         LOGGER.debug('StopCollector: {:s}'.format(grpc_message_to_json_string(request)))
         response = self.stub.StopCollector(request)
         LOGGER.debug('StopCollector result: {:s}'.format(grpc_message_to_json_string(response)))
         return response
 
     @RETRY_DECORATOR
-    def SelectCollectors(self, request : CollectorFilter) --> CollectorList:
+    def SelectCollectors(self, request : CollectorFilter) -> CollectorList:
         LOGGER.debug('SelectCollectors: {:s}'.format(grpc_message_to_json_string(request)))
         response = self.stub.SelectCollectors(request)
         LOGGER.debug('SelectCollectors result: {:s}'.format(grpc_message_to_json_string(response)))