diff --git a/lhcbnightlyconf/Gauss.py b/lhcbnightlyconf/Gauss.py
index 695cc44fb55883dc7cc0dd7f55015d46139855a5..7a96a5c070f93aee95f250e798f0fbb430adef52 100644
--- a/lhcbnightlyconf/Gauss.py
+++ b/lhcbnightlyconf/Gauss.py
@@ -265,7 +265,7 @@ gaussMR = create_sim_slot(
     'Build to check MR compatibility for Run1-2 of LHCb, Run2Support and Gauss',
     platforms=DEV_PLATFORMS)
 gaussMR.DBASE.packages.append(
-   Package('Gen/DecFiles', 'Sim10', checkout=('git', {
+    Package('Gen/DecFiles', 'Sim10', checkout=('git', {
         'merges': 'all'
     })))
 gaussMR.Detector.version = 'master'