diff --git a/apps/assets/migrations/0090_auto_20220412_1145.py b/apps/assets/migrations/0090_auto_20220412_1145.py
index c2cb879aa..434b7b3cf 100644
--- a/apps/assets/migrations/0090_auto_20220412_1145.py
+++ b/apps/assets/migrations/0090_auto_20220412_1145.py
@@ -3,6 +3,20 @@
 from django.db import migrations, models
 
 
+def create_internal_platform(apps, schema_editor):
+    model = apps.get_model("assets", "Platform")
+    db_alias = schema_editor.connection.alias
+    type_platforms = (
+        ('AIX', 'Unix', None),
+    )
+    for name, base, meta in type_platforms:
+        defaults = {'name': name, 'base': base, 'meta': meta, 'internal': True}
+        model.objects.using(db_alias).update_or_create(
+            name=name, defaults=defaults
+        )
+        migrations.RunPython(create_internal_platform)
+
+
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -15,4 +29,5 @@ class Migration(migrations.Migration):
             name='number',
             field=models.CharField(blank=True, max_length=128, null=True, verbose_name='Asset number'),
         ),
+        migrations.RunPython(create_internal_platform)
     ]
diff --git a/apps/assets/models/asset.py b/apps/assets/models/asset.py
index 7d46a4b25..7dde0862f 100644
--- a/apps/assets/models/asset.py
+++ b/apps/assets/models/asset.py
@@ -142,10 +142,6 @@ class Platform(models.Model):
     internal = models.BooleanField(default=False, verbose_name=_("Internal"))
     comment = models.TextField(blank=True, null=True, verbose_name=_("Comment"))
 
-    @property
-    def algorithm(self):
-        return self.meta.get('algorithm')
-
     @classmethod
     def default(cls):
         linux, created = cls.objects.get_or_create(
diff --git a/apps/assets/tasks/push_system_user.py b/apps/assets/tasks/push_system_user.py
index 46734e4be..98d2a0922 100644
--- a/apps/assets/tasks/push_system_user.py
+++ b/apps/assets/tasks/push_system_user.py
@@ -244,7 +244,7 @@ def push_system_user_util(system_user, assets, task_name, username=None):
         for u in usernames:
             for a in _assets:
                 system_user.load_asset_special_auth(a, u)
-                algorithm = a.platform.algorithm
+                algorithm = 'des' if a.platform.name == 'AIX' else 'sha512'
                 tasks = get_push_system_user_tasks(
                     system_user, platform, username=u,
                     algorithm=algorithm