diff --git a/src/bundle/Resources/public/js/scripts/core/custom.dropdown.js b/src/bundle/Resources/public/js/scripts/core/custom.dropdown.js
index c2d7c86801..5b96d12971 100644
--- a/src/bundle/Resources/public/js/scripts/core/custom.dropdown.js
+++ b/src/bundle/Resources/public/js/scripts/core/custom.dropdown.js
@@ -142,7 +142,9 @@
             }
 
             if (this.itemsContainer.closest(SELECTOR_MODAL)) {
-                return itemsContainerTop - DROPDOWN_MARGIN;
+                const modalHeight = this.itemsContainer.closest('.modal-content').getBoundingClientRect().height;
+
+                return modalHeight - itemsContainerTop;
             }
 
             return documentElementHeight - itemsContainerTop - DROPDOWN_MARGIN;