diff --git a/scripts/running_scripts b/scripts/running_scripts
index 60d5717..465a3a2 100644
--- a/scripts/running_scripts
+++ b/scripts/running_scripts
@@ -4,9 +4,9 @@
 ./data_extraction.py -d pyrazinamide -g pncA 
 
 #========
-# foldx
+# foldx: specify chain if default is NOT 'A'
 #========
-./runFoldx.py -d pyrazinamide -g pncA 
+./runFoldx.py -d pyrazinamide -g pncA
 
 #========
 # mcsm