diff --git a/tests/internal/processes/test_generator.py b/tests/internal/processes/test_generator.py
index 57b931bd9..9b09a8a0c 100644
--- a/tests/internal/processes/test_generator.py
+++ b/tests/internal/processes/test_generator.py
@@ -285,7 +285,7 @@ def apply_dimension(data, dimension, process):
 
             :return: Data cube
             """
-            return _process('apply_dimension',
+            return _process('apply_dimension', 
                 data=data,
                 dimension=dimension,
                 process=build_child_callback(process, parent_parameters=['data'])