diff --git a/module/rdd-resolution-table.js b/module/rdd-resolution-table.js
index 9edf47d3..c1b4e2df 100644
--- a/module/rdd-resolution-table.js
+++ b/module/rdd-resolution-table.js
@@ -90,12 +90,10 @@ export class RdDResolutionTable {
 
   /* -------------------------------------------- */
   static updateChancesWithBonus( chances, bonus ) {
-    let newScore   = Number(chances.score) + Number(bonus);
-    chances.score  = newScore;
-    chances.sign   = this._reussiteSignificative(newScore);
-    chances.part   = this._reussitePart(newScore);
-    chances.epart  = this._echecParticulier(newScore);
-    chances.etotal = this._echecTotal(newScore);
+    if (bonus) {
+      let newScore   = Number(chances.score) + Number(bonus);
+      mergeObject(chances, this._computeCell(null, newScore), {overwrite: true});
+    }
   }
 
   /* -------------------------------------------- */