diff --git a/view/shipment_in_return_assign_failed_form.xml b/view/shipment_in_return_assign_failed_form.xml
index 0fc35c0ebd..dd5543bd50 100644
--- a/view/shipment_in_return_assign_failed_form.xml
+++ b/view/shipment_in_return_assign_failed_form.xml
@@ -2,9 +2,8 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <form col="2">
-<image name="tryton-warning" xexpand="0" xfill="0"/>
-<separator string="Unable to assign those products:"
-    id="unable"/>
-<field name="moves" colspan="2"
-    view_ids="stock.move_view_tree_simple"/>
+    <image name="tryton-error" xexpand="0" xfill="0"/>
+    <separator string="Unable to assign these products:" id="unable"/>
+    <field name="moves" colspan="2"
+        view_ids="stock.move_view_tree_simple"/>
 </form>
diff --git a/view/shipment_internal_assign_failed_form.xml b/view/shipment_internal_assign_failed_form.xml
index 04f660893a..dd5543bd50 100644
--- a/view/shipment_internal_assign_failed_form.xml
+++ b/view/shipment_internal_assign_failed_form.xml
@@ -2,8 +2,8 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <form col="2">
-    <image name="tryton-warning" xexpand="0" xfill="0"/>
-    <separator string="Unable to assign those products:" id="unable"/>
+    <image name="tryton-error" xexpand="0" xfill="0"/>
+    <separator string="Unable to assign these products:" id="unable"/>
     <field name="moves" colspan="2"
         view_ids="stock.move_view_tree_simple"/>
 </form>
diff --git a/view/shipment_out_assign_failed_form.xml b/view/shipment_out_assign_failed_form.xml
index 1af6c9752c..309cbd769f 100644
--- a/view/shipment_out_assign_failed_form.xml
+++ b/view/shipment_out_assign_failed_form.xml
@@ -2,8 +2,8 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <form col="2">
-    <image name="tryton-warning" xexpand="0" xfill="0"/>
-    <separator string="Unable to assign those products:" id="unable"/>
+    <image name="tryton-error" xexpand="0" xfill="0"/>
+    <separator string="Unable to assign these products:" id="unable"/>
     <field name="inventory_moves" colspan="2"
         view_ids="stock.move_view_tree_simple"/>
 </form>