diff --git a/README.md b/README.md
index 86d30ec9..3826f25b 100644
--- a/README.md
+++ b/README.md
@@ -1027,6 +1027,7 @@ Set the variable **use_DRAMSyrup_to_generate_config_files** to **yes** in
 order to get all the essential simuation files auto generated from a
 description in JSON format loaded from
 [**configs.json**](DRAMSys/library/resources/scripts/DRAMSylva/configs.json).
+**Note: this overrides sim_files**.
 
 ``` bash
 use_DRAMSyrup_to_generate_config_files="yes"