diff --git a/Selection-code.md b/Selection-code.md
index 87148f5..e75140a 100644
--- a/Selection-code.md
+++ b/Selection-code.md
@@ -165,7 +165,7 @@ compareAll(1); compareAll(2);
 ```
 
 
-Remove all multiple candidates, defined in [[RemoveMultipleCandidates.py|RemoveMultipleCandidates.py]]
+Remove all multiple candidates, defined in [[RemoveMultipleCandidates.py|RemoveMultipleCandidates.py]]. Before running this for the first time, you have to change the path in [`getTreePath` function](https://git.physi.uni-heidelberg.de/kopecna/EWP-BplusToKstMuMu-AngAna/wiki/Utils3.py#gettreepath) and similarly in the [`getTreeList` function](https://git.physi.uni-heidelberg.de/kopecna/EWP-BplusToKstMuMu-AngAna/wiki/Utils3.py#gettreelist)
 ```
 python RemoveMultipleCandidates.py -all
 ```