diff --git a/README.md b/README.md
index af3a1a51984d76342cca1636e37581f7efe010d3..d20b43e9f2799d7db85d288f88470df093b9ee29 100644
--- a/README.md
+++ b/README.md
@@ -188,3 +188,4 @@ The report contains the following data :
 * If you want to make a graphic, you can use the StackedBarChartPlot file in tool folder. This file use another file where it is written the data FN FP TN TP count by the system. The file is in the folder called OutputGraphic.
 * If you want to get all the data (FN,FP,TN,TP), don't forget to add an extra timestamp at the end of the data file
 * If you want to see some Class diagram of the project, you have to check the path Anomasly/src/batch/batch/war/data/png-exports
+* Some data file need to remove the categoty nb_anomalies and all values associated