diff --git a/runbot/models/build_error.py b/runbot/models/build_error.py
index 16f22ed9..ad89c2b0 100644
--- a/runbot/models/build_error.py
+++ b/runbot/models/build_error.py
@@ -516,6 +516,21 @@ class BuildErrorContent(models.Model):
         for errors_content_to_merge in to_merge:
             errors_content_to_merge._merge()
 
+    def action_find_duplicates(self):
+        rg = [r['id_arr'] for r in self.env['runbot.build.error.content'].read_group([], ['id_count:count(id)', 'id_arr:array_agg(id)', 'fingerprint'], ['fingerprint']) if r['id_count'] >1]
+        duplicate_ids = []
+        for ids_lists in rg:
+            duplicate_ids += ids_lists
+
+        return {
+            "type": "ir.actions.act_window",
+            "res_model": "runbot.build.error.content",
+            "domain": [('id', 'in', duplicate_ids)],
+            "context": {"create": False, 'group_by': ['fingerprint']},
+            "name": "Duplicate Error contents",
+            'view_mode': 'tree,form'
+        }
+
 
 class BuildErrorTag(models.Model):
 
diff --git a/runbot/views/build_error_views.xml b/runbot/views/build_error_views.xml
index 39f0885a..d98ca78f 100644
--- a/runbot/views/build_error_views.xml
+++ b/runbot/views/build_error_views.xml
@@ -241,6 +241,7 @@
                   create="false"
                   >
                 <header>
+                  <button name="action_find_duplicates" type="object" string="Find duplicates" display="always"/>
                 </header>
                 <field name="error_display_id" optional="show"/>
                 <field name="module_name" optional="show" readonly="1"/>
@@ -393,7 +394,15 @@
         <field name="view_mode">tree,form</field>
     </record>
 
-
+    <record id="action_find_duplicates" model="ir.actions.server">
+      <field name="name">Find Duplicates</field>
+      <field name="model_id" ref="runbot.model_runbot_build_error_content"/>
+      <field name="type">ir.actions.server</field>
+      <field name="state">code</field>
+      <field name="code">
+          action = model._find_duplicates()
+      </field>
+    </record>
 
   </data>
 </odoo>