diff --git a/templates/macro/form.html b/templates/macro/form.html
index f9c5a5d..cd126e9 100644
--- a/templates/macro/form.html
+++ b/templates/macro/form.html
@@ -15,3 +15,18 @@
     {{ text }}
   {% endif %}
 {% endmacro %}
+
+{% macro input(id, html_id, url, value) %}
+  <input class="form-control form-control-sm flex-shrink-1" type="text" value="{% if value %}{{ value }}{% endif %}"
+  {% if g.login.is_authenticated() %}
+      onchange="change_part_missing_amount(this, '{{ id }}', '{{ html_id }}', '{{ url }}')"
+  {% else %}
+      disabled
+  {% endif %}
+      autocomplete="off">
+  {% if g.login.is_authenticated() %}
+    <span id="status-part-{{ id }}-{{ html_id }}" class="input-group-text ri-save-line"></span>
+  {% else %}
+    <span class="input-group-text ri-prohibited-line"></span>
+  {% endif %}
+{% endmacro %}
diff --git a/templates/part/table.html b/templates/part/table.html
index 8e1da01..b7139ed 100644
--- a/templates/part/table.html
+++ b/templates/part/table.html
@@ -1,3 +1,4 @@
+{% import 'macro/form.html' as form %}
 {% import 'macro/table.html' as table %}
 
 <div class="table-responsive-sm">
@@ -32,15 +33,7 @@
               {{ item.fields.total_missing }}
             {% else %}
             <div class="input-group">
-              {% if g.login.is_authenticated() %}
-                <input class="form-control form-control-sm flex-shrink-1" type="text" {% if item.fields.total_missing %}value="{{ item.fields.total_missing }}"{% endif %}
-                  onchange="change_part_missing_amount(this, '{{ item.fields.id }}', '{{ item.html_id() }}', '{{ item.url_for_missing() }}')" autocomplete="off">
-                <span id="status-part-{{ item.fields.id }}-{{ item.html_id() }}" class="input-group-text ri-save-line"></span>
-                {% else %}
-                <input class="form-control form-control-sm" type="text" {% if item.fields.total_missing %}value="{{ item.fields.total_missing }}"{% endif %}
-                  disabled autocomplete="off">
-                <span class="input-group-text ri-prohibited-line"></span>
-              {% endif %}
+              {{ form.input(item.fields.id, item.html_id(), item.url_for_missing(), item.fields.total_missing) }}
             </div>
             {% endif %}
           </td>