diff --git a/src/nub.ts b/src/nub.ts
index 67e8a9c39a24bdc30db11c6b09a969f835c20f35..90b151f8cf0c4c292c59978323e135eaddead8ec 100644
--- a/src/nub.ts
+++ b/src/nub.ts
@@ -108,7 +108,7 @@ export abstract class Nub extends ComputeNode {
             rInit = computedParam.v;
 
         if (variatedParam == undefined)
-            this.Calc(computedSymbol, rInit, rPrec); // résultat dans this._result
+            this._result = this.Calc(computedSymbol, rInit, rPrec); // résultat dans this._result
         else {
             const res = new Result();
             variatedParam.paramValues.initIterator();