diff --git a/ElectromagneticScattering/README.md b/ElectromagneticScattering/README.md
index 7ed81e3ab46c0e7b11e6d410fae174d44c14f6c9..18a4220309eafbd70330fea3874f524972d5389b 100644
--- a/ElectromagneticScattering/README.md
+++ b/ElectromagneticScattering/README.md
@@ -12,7 +12,7 @@ This project contains a [Onelab](http://onelab.info/wiki/ONELAB) model for solvi
 
 This model requires the following (open-source) programs:
 * [onelab](http://onelab.info/wiki/ONELAB), which bundles both [gmsh](http://www.gmsh.info/) and [getdp](http://www.getdp.info/)
-* python (v2.7.x or v3.6.x) with numpy, scipy, and matplotlib
+* python (v2.7.x or v3.6.x) with numpy, scipy and matplotlib
 
 ## Running the model