diff --git a/beat/backend/python/data.py b/beat/backend/python/data.py
index 3a4aae866bdd123c1133b4819df1cd44a9748ab7..c40ceff719ba5cb18a3dec47b04f57bfc5356d72 100644
--- a/beat/backend/python/data.py
+++ b/beat/backend/python/data.py
@@ -638,7 +638,7 @@ class RemoteDataSource(DataSource):
 
         Parameters:
 
-          socket (socket): The socket to use to access the data.
+          socket (zmq.Socket): The socket to use to access the data.
 
           input_name (str): Name of the input corresponding to the data source.