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+++ b/README.md
@@ -96,6 +96,7 @@ See JASS documentation for its usage (https://statistical-genetics.pages.pasteur
 
 For this step you will need to install an additional dependency [RAISS](https://gitlab.pasteur.fr/statistical-genetics/raiss) python package.
 
+* --compute_imputation=true : the imputation   step will be performed
 * --ref_panel : A folder containing a Reference Panel in the .bim, .bed, .fam format for imputation with RAISS
 * --ld-folder : A path toward a folder containing LD matrices (that can be generated from the reference panel with the raiss package as described here : http://statistical-genetics.pages.pasteur.fr/raiss/#precomputation-of-ld-correlation)