From b314558a28e1516f95af6420e0628cc8cd9f59cc Mon Sep 17 00:00:00 2001
From: Fabio Cossutti <fabio.cossutti@ts.infn.it>
Date: Sun, 27 Nov 2022 18:04:51 +0100
Subject: [PATCH] Comment by M. Nguyen

---
 RecoLocalFastTime/FTLClusterizer/src/MTDThresholdClusterizer.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/RecoLocalFastTime/FTLClusterizer/src/MTDThresholdClusterizer.cc b/RecoLocalFastTime/FTLClusterizer/src/MTDThresholdClusterizer.cc
index a120e01e30a14..9e20fe8c0782d 100644
--- a/RecoLocalFastTime/FTLClusterizer/src/MTDThresholdClusterizer.cc
+++ b/RecoLocalFastTime/FTLClusterizer/src/MTDThresholdClusterizer.cc
@@ -335,7 +335,7 @@ FTLCluster MTDThresholdClusterizer::make_cluster(const FTLCluster::FTLHitPos& hi
       sumXW2 += acluster.energy[index] * acluster.energy[index] * pixel_errx2[index];
     }
     cluster.setClusterPosX(sumXW / sumW);
-    cluster.setClusterErrorX(std::sqrt(sumXW2 / sumW / sumW));
+    cluster.setClusterErrorX(std::sqrt(sumXW2) / sumW);
   }
 
   return cluster;