diff --git a/copanier/templates/place_order.html b/copanier/templates/place_order.html
index 1f7dea7..84bd26b 100644
--- a/copanier/templates/place_order.html
+++ b/copanier/templates/place_order.html
@@ -33,7 +33,7 @@
             {% endif %}
             <td class="with-input"><input {% if delivery.status != delivery.OPEN %}type="text" readonly{% else%}type="number"{% endif%} min=0 name="wanted:{{ product.ref }}" value="{{ order[product].wanted }}"></td>
             {% if delivery.status == delivery.ADJUSTMENT or order.has_adjustments or force_adjustment %}
-            <td class="with-input"><input type="number" name="adjustment:{{ product.ref }}" value="{{ order[product].adjustment }}" {% if not (delivery.product_missing(product) or  force_adjustment) %}readonly{% endif %}></td>
+            <td class="with-input"><input type="number" name="adjustment:{{ product.ref }}" value="{{ order[product].adjustment }}" min="{{ order[product].wanted * -1 }}" {% if not (delivery.product_missing(product) or  force_adjustment) %}readonly{% endif %}></td>
             {% endif %}
         </tr>
         {% endfor %}
diff --git a/tests/test_views.py b/tests/test_views.py
index d6c5f3b..c9a8763 100644
--- a/tests/test_views.py
+++ b/tests/test_views.py
@@ -131,6 +131,7 @@ async def test_get_place_order_with_adjustment_status(client, delivery):
     assert doc('[name="wanted:123"]').attr("readonly")
     assert doc('[name="adjustment:123"]')
     assert not doc('[name="adjustment:123"]').attr("readonly")
+    assert doc('[name="adjustment:123"]').attr("min") == "-1"
     assert doc('[name="wanted:456"]').attr("readonly")
     assert doc('[name="adjustment:456"]')
     # Already adjusted.