diff --git a/NonLinearEVP/README.TXT b/NonLinearEVP/README.TXT
index 2f3ae9f19a9d97fdbdc2f1428b548c8d9c8114bc..24cd01a307a68db1f8dae0fb4b35d9dcbca76ad0 100644
--- a/NonLinearEVP/README.TXT
+++ b/NonLinearEVP/README.TXT
@@ -2,7 +2,8 @@ A demo of non-linear eigenvalue problems in GetDP.
 
 This model computes one selected eigenfrequency of a grating made of a 
 frequency-dispersive material. Five different formulations are given,
-calling various solvers of the SLEPc library.
+calling the polynomial and (rational) non-linear solvers of the SLEPc library
+thanks to the unified Eig operator.
 
 Quick start
 -----------