diff --git a/spec/param/param_multivar.spec.ts b/spec/param/param_multivar.spec.ts
index f10a10388a4c14cca479b2edc536cb996c224d40..188ad7b3714c0a4b09cbf580fb12feb4b0ea6cc3 100644
--- a/spec/param/param_multivar.spec.ts
+++ b/spec/param/param_multivar.spec.ts
@@ -29,7 +29,7 @@ function createLinkedNubEnv() {
  * @param sort if true, list will be ordered
  */
 function randomList(
-    refVal: number, minSize: number = 1, maxSize: number = 20, maxDev: number = 3, sort: boolean = true
+    refVal: number, minSize: number = 2, maxSize: number = 20, maxDev: number = 3, sort: boolean = true
 ): number[] {
     let list: number[] = [];
     const size = minSize + Math.floor(Math.random() * ((maxSize - minSize) + 1)); // between minSize and maxSize
@@ -147,6 +147,7 @@ describe("multiple variated parameters - ", () => {
                 if (p.visible) {
                     if (! sparedParam) {
                         sparedParam = p;
+                        nub1.calculatedParam = p;
                     } else {
                         const rl = randomList(p.singleValue);
                         longest = Math.max(longest, rl.length);
@@ -269,6 +270,7 @@ describe("multiple variated parameters - ", () => {
                 if (p.visible) {
                     if (! sparedParam) {
                         sparedParam = p;
+                        nub1.calculatedParam = p;
                     } else {
                         const rl = randomList(p.singleValue);
                         longest = Math.max(longest, rl.length);