diff --git a/chain_setup.cfg b/chain_setup.cfg
index bd2050e11b22dd028410f9eca36040224ea81221..ef8b6c253da2d47047d72306c2698a26e38f5b47 100644
--- a/chain_setup.cfg
+++ b/chain_setup.cfg
@@ -107,7 +107,7 @@ FEAT: B1,B2,B3,B4,B5,B6,B7,NDVI,NDWI,BRI,MNDVI,MNDWI
 
 #GapFilling Setup
 #Mode NONE : no gapfilling (clouds filled with R-like rough-fix strategy)
-#Mode BASE : gapfilling on reflectance values prior to feature computation  --> NOT IMPLEMENTED
+#Mode BASE : gapfilling on reflectance values prior to feature computation  --> no use here, USE 'cloudfreeComposites'
 #Mode FEATURE : independent feature-wise gapfilling
 GAPFILLINGMODE: FEATURE
 MINVIEWS: 2