diff --git a/src/app/components/calculator-list/calculator-list.component.ts b/src/app/components/calculator-list/calculator-list.component.ts
index 0b2acf60ddfee5f3059f240eea5215de65cfb126..c4acb05d66f1251e2ebc8a26f1fa66f927bd9a14 100644
--- a/src/app/components/calculator-list/calculator-list.component.ts
+++ b/src/app/components/calculator-list/calculator-list.component.ts
@@ -79,6 +79,7 @@ export class CalculatorListComponent implements OnInit {
                     if ( // those sub-Nub types cannot be built outside a parent
                         t !== CalculatorType.Structure
                         && t !== CalculatorType.Section
+                        && t !== CalculatorType.CloisonAval
                     ) {
                         unusedTheme.calculators.push({
                             type: t,