diff --git a/fsl_mrs_mce/mc_in.py b/fsl_mrs_mce/mc_in.py
index a40856c..029fc69 100644
--- a/fsl_mrs_mce/mc_in.py
+++ b/fsl_mrs_mce/mc_in.py
@@ -1,4 +1,4 @@
-# mc_sim.py - Helpers for Monte-Carlo style simulations
+# mc_in.py - Helpers for Monte-Carlo style simulations
 #
 # Author: Konstantin E Bosbach <konstantin.bosbach@mars.uni-freiburg.de>