diff --git a/README.md b/README.md
index 0f44675c3d9e0c30c396f3e8d4b5f4a60d229179..6d7f06bbf3b75101d656c3aab7a70381c3556cc0 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ How to run it
 
 2. MPI parallel version
 
-	>2.5 GK Sugama collision operator
+	2.5 //GK COSOlver collision operator//
 
 	2.4 2D cartesian parallel (along p and kr)