diff --git a/app/assets/javascripts/sitewide/dropdown_selector.js b/app/assets/javascripts/sitewide/dropdown_selector.js
index 040d720a0..f14c7d5d4 100644
--- a/app/assets/javascripts/sitewide/dropdown_selector.js
+++ b/app/assets/javascripts/sitewide/dropdown_selector.js
@@ -956,9 +956,9 @@ var dropdownSelector = (function() {
       if ($selector.length === 0) return false;
 
       valuesArray.forEach(function(value) {
-        option = $selector.find(`option[value="${value}"]`)[0];
-        option.selected = 'selected';
-        options.push(convertOptionToJson(option));
+        option = $selector.find(`option[value="${value}"]`);
+        option.attr('selected', true);
+        options.push(convertOptionToJson(option[0]));
       });
       setData($selector, options);
       return this;
diff --git a/app/views/repository_stock_values/_manage_modal_content.html.erb b/app/views/repository_stock_values/_manage_modal_content.html.erb
index 055f118c1..8d4d0da24 100644
--- a/app/views/repository_stock_values/_manage_modal_content.html.erb
+++ b/app/views/repository_stock_values/_manage_modal_content.html.erb
@@ -49,7 +49,7 @@
                      data-current-amount="<%= repository_stock_value.amount %>"
                      data-decimals="<%= repository_stock_column.metadata['decimals'] %>"
                      value="<%= repository_stock_value.formatted_value %>"
-                     placeholder="<%= t("repository_stock_values.manage_modal.amount_placeholder#{repository_stock_value.new_record? ? '_new' : ''}") %>"
+                     placeholder="<%= t("repository_stock_values.manage_modal.amount_placeholder_new") %>"
                      required />
             </div>
           </div>