diff --git a/qcodes/loops.py b/qcodes/loops.py
index 799e039de5ba..82f635f1f50c 100644
--- a/qcodes/loops.py
+++ b/qcodes/loops.py
@@ -63,6 +63,8 @@
 from .actions import (_actions_snapshot, Task, Wait, _Measure, _Nest,
                       BreakIf, _QcodesBreak)
 
+# Switches off multiprocessing by default, cant' be altered after module import.
+# TODO(giulioungaretti) use config.
 
 USE_MP = False
 MP_NAME = 'Measurement'