diff --git a/osbuild/devices.py b/osbuild/devices.py
index 44541a72..8490f1e4 100644
--- a/osbuild/devices.py
+++ b/osbuild/devices.py
@@ -21,10 +21,11 @@ import stat
 from typing import Any, Dict, Optional
 
 from osbuild import host
+from osbuild.mixins import MixinImmutableID
 from osbuild.util import ctx
 
 
-class Device:
+class Device(MixinImmutableID):
     """
     A single device with its corresponding options
     """
diff --git a/osbuild/inputs.py b/osbuild/inputs.py
index 5e845df7..229c1264 100644
--- a/osbuild/inputs.py
+++ b/osbuild/inputs.py
@@ -48,7 +48,6 @@ class Input:
         self.id = self.calc_id()
 
     def calc_id(self):
-
         # NB: The input `name` is not included here on purpose since it
         # is either prescribed by the stage itself and thus not actual
         # parameter or arbitrary and chosen by the manifest generator
diff --git a/osbuild/mixins.py b/osbuild/mixins.py
new file mode 100644
index 00000000..24f09d35
--- /dev/null
+++ b/osbuild/mixins.py
@@ -0,0 +1,15 @@
+"""
+Mixin helper classes
+"""
+
+
+class MixinImmutableID:
+    """
+    Mixin to ensure that "self.id" attributes are immutable after id is set
+    """
+
+    def __setattr__(self, name, val):
+        if hasattr(self, "id"):
+            class_name = self.__class__.__name__
+            raise ValueError(f"cannot set '{name}': {class_name} cannot be changed after creation")
+        super().__setattr__(name, val)
diff --git a/osbuild/mounts.py b/osbuild/mounts.py
index 86576ad0..b938d21d 100644
--- a/osbuild/mounts.py
+++ b/osbuild/mounts.py
@@ -16,9 +16,10 @@ from typing import Dict, List
 
 from osbuild import host
 from osbuild.devices import DeviceManager
+from osbuild.mixins import MixinImmutableID
 
 
-class Mount:
+class Mount(MixinImmutableID):
     """
     A single mount with its corresponding options
     """
diff --git a/test/mod/test_mixins.py b/test/mod/test_mixins.py
new file mode 100644
index 00000000..e793ad7e
--- /dev/null
+++ b/test/mod/test_mixins.py
@@ -0,0 +1,32 @@
+from unittest.mock import Mock
+
+import pytest
+
+from osbuild.devices import Device
+from osbuild.meta import ModuleInfo
+from osbuild.mounts import Mount
+
+
+def test_mount_immutable_mixin():
+    info = Mock(spec=ModuleInfo)
+    info.name = "some-name"
+    device = Mock(spec=ModuleInfo)
+    device.id = "some-id"
+    partition = 1
+    target = "/"
+    opts = {"opt1": 1}
+    mnt = Mount("name", info, device, partition, target, opts)
+    with pytest.raises(ValueError) as e:
+        mnt.name = "new-name"
+    assert str(e.value) == "cannot set 'name': Mount cannot be changed after creation"
+
+
+def test_device_immutable_mixins():
+    info = Mock(spec=ModuleInfo)
+    info.name = "some-name"
+    parent = None
+    opts = {"opt1": 1}
+    dev = Device("name", info, parent, opts)
+    with pytest.raises(ValueError) as e:
+        dev.name = "new-name"
+    assert str(e.value) == "cannot set 'name': Device cannot be changed after creation"