diff --git a/src/ralph/assets/migrations/0035_auto_20240425_1059.py b/src/ralph/assets/migrations/0035_auto_20240425_1059.py
new file mode 100644
index 0000000000..ecbb95fc0d
--- /dev/null
+++ b/src/ralph/assets/migrations/0035_auto_20240425_1059.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import ralph.lib.mixins.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('assets', '0034_auto_20240304_1511'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='asset',
+            name='hostname',
+            field=ralph.lib.mixins.fields.NullableCharFieldWithAutoStrip(verbose_name='hostname', max_length=255, blank=True, null=True, db_index=True, default=None),
+        ),
+    ]
diff --git a/src/ralph/assets/models/assets.py b/src/ralph/assets/models/assets.py
index a4ae5b4eb8..a1d645d0b5 100644
--- a/src/ralph/assets/models/assets.py
+++ b/src/ralph/assets/models/assets.py
@@ -368,6 +368,7 @@ class Asset(AdminAbsoluteUrlMixin, PriceMixin, BaseObject):
         max_length=255,
         null=True,
         verbose_name=_('hostname'),  # TODO: unique
+        db_index=True,
     )
     sn = NullableCharField(
         blank=True,
diff --git a/src/ralph/virtual/migrations/0014_auto_20240425_1059.py b/src/ralph/virtual/migrations/0014_auto_20240425_1059.py
new file mode 100644
index 0000000000..9fcf40a17c
--- /dev/null
+++ b/src/ralph/virtual/migrations/0014_auto_20240425_1059.py
@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('virtual', '0013_auto_20190625_1239'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='cloudhost',
+            name='hostname',
+            field=models.CharField(verbose_name='hostname', max_length=255, db_index=True),
+        ),
+    ]
diff --git a/src/ralph/virtual/models.py b/src/ralph/virtual/models.py
index bde08a2e70..8b24395610 100644
--- a/src/ralph/virtual/models.py
+++ b/src/ralph/virtual/models.py
@@ -214,7 +214,8 @@ def save(self, *args, **kwargs):
     )
     hostname = models.CharField(
         verbose_name=_('hostname'),
-        max_length=255
+        max_length=255,
+        db_index=True,
     )
     hypervisor = models.ForeignKey(DataCenterAsset, blank=True, null=True)
     image_name = models.CharField(max_length=255, null=True, blank=True)