diff --git a/README.md b/README.md
index 4991d9500974b2d00c5c871b8e03baa618c89913..f21cc888e778d43a6a8d728e6b78c3231385f947 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,9 @@ Custom Material SVG Icons will only show up when the application is deployed on
 			export class Toto extends Nub {
 				constructor(prms: TotoParams, dbg: boolean = false) {
 					super(prms, dbg);
+					// paramètre à calculer par défaut
+					this._defaultCalculatedParam = prms.A;
+					this.resetDefaultCalculatedParam();
 				}
 
 				/**