diff --git a/supervisor/addons/model.py b/supervisor/addons/model.py
index 0d5065272..7720ddba6 100644
--- a/supervisor/addons/model.py
+++ b/supervisor/addons/model.py
@@ -301,11 +301,6 @@ class AddonModel(CoreSysAttributes, ABC):
         """Return static devices of add-on."""
         return [Path(node) for node in self.data.get(ATTR_DEVICES, [])]
 
-    @property
-    def tmpfs(self) -> Optional[str]:
-        """Return tmpfs of add-on."""
-        return self.data.get(ATTR_TMPFS)
-
     @property
     def environment(self) -> Optional[Dict[str, str]]:
         """Return environment of add-on."""
@@ -410,6 +405,11 @@ class AddonModel(CoreSysAttributes, ABC):
         """Return True if the add-on read access to devicetree."""
         return self.data[ATTR_DEVICETREE]
 
+    @property
+    def with_tmpfs(self) -> Optional[str]:
+        """Return if tmp is in memory of add-on."""
+        return self.data[ATTR_TMPFS]
+
     @property
     def access_auth_api(self) -> bool:
         """Return True if the add-on access to login/auth backend."""
diff --git a/supervisor/addons/validate.py b/supervisor/addons/validate.py
index b5f7975d6..e5ce067e6 100644
--- a/supervisor/addons/validate.py
+++ b/supervisor/addons/validate.py
@@ -176,6 +176,15 @@ def _migrate_addon_config(protocol=False):
                 )
             config[ATTR_DEVICES] = [line.split(":")[0] for line in config[ATTR_DEVICES]]
 
+        # TMPFS 2021-02-01
+        if ATTR_TMPFS in config and not isinstance(config[ATTR_TMPFS], bool):
+            if protocol:
+                _LOGGER.warning(
+                    "Add-on config 'tmpfs' use a deprecated format, new it's only a boolean. Please report this to the maintainer of %s",
+                    name,
+                )
+            config[ATTR_TMPFS] = True
+
         return config
 
     return _migrate
@@ -221,7 +230,7 @@ _SCHEMA_ADDON_CONFIG = vol.Schema(
         vol.Optional(ATTR_HOST_DBUS, default=False): vol.Boolean(),
         vol.Optional(ATTR_DEVICES): [str],
         vol.Optional(ATTR_UDEV, default=False): vol.Boolean(),
-        vol.Optional(ATTR_TMPFS): vol.Match(r"^size=(\d)*[kmg](,uid=\d{1,4})?(,rw)?$"),
+        vol.Optional(ATTR_TMPFS, default=False): vol.Boolean(),
         vol.Optional(ATTR_MAP, default=list): [vol.Match(RE_VOLUME)],
         vol.Optional(ATTR_ENVIRONMENT): {vol.Match(r"\w*"): str},
         vol.Optional(ATTR_PRIVILEGED): [vol.In(PRIVILEGED_ALL)],
diff --git a/supervisor/docker/addon.py b/supervisor/docker/addon.py
index 713254f5f..c5a6fbe2c 100644
--- a/supervisor/docker/addon.py
+++ b/supervisor/docker/addon.py
@@ -92,13 +92,6 @@ class DockerAddon(DockerInterface):
         """Return name of Docker container."""
         return f"addon_{self.addon.slug}"
 
-    @property
-    def ipc(self) -> Optional[str]:
-        """Return the IPC namespace."""
-        if self.addon.host_ipc:
-            return "host"
-        return None
-
     @property
     def full_access(self) -> bool:
         """Return True if full access is enabled."""
@@ -196,9 +189,17 @@ class DockerAddon(DockerInterface):
     @property
     def tmpfs(self) -> Optional[Dict[str, str]]:
         """Return tmpfs for Docker add-on."""
-        options = self.addon.tmpfs
-        if options:
-            return {"/tmpfs": f"{options}"}
+        tmpfs = {}
+
+        if self.addon.with_tmpfs:
+            tmpfs["/tmpfs"] = ""
+
+        if not self.addon.host_ipc:
+            tmpfs["/dev/shm"] = ""
+
+        # Return None if no tmpfs is present
+        if tmpfs:
+            return tmpfs
         return None
 
     @property
@@ -377,7 +378,6 @@ class DockerAddon(DockerInterface):
             detach=True,
             init=self.addon.default_init,
             privileged=self.full_access,
-            ipc_mode=self.ipc,
             stdin_open=self.addon.with_stdin,
             network_mode=self.network_mode,
             pid_mode=self.pid_mode,
diff --git a/supervisor/docker/homeassistant.py b/supervisor/docker/homeassistant.py
index a367cd950..e95a0d4e8 100644
--- a/supervisor/docker/homeassistant.py
+++ b/supervisor/docker/homeassistant.py
@@ -144,6 +144,7 @@ class DockerHomeAssistant(DockerInterface):
                 ENV_TOKEN: self.sys_homeassistant.supervisor_token,
                 ENV_TOKEN_HASSIO: self.sys_homeassistant.supervisor_token,
             },
+            tmpfs={"/tmp": ""},
         )
 
         self._meta = docker_container.attrs
diff --git a/tests/addons/test_config.py b/tests/addons/test_config.py
index 8ea531134..93fc1d969 100644
--- a/tests/addons/test_config.py
+++ b/tests/addons/test_config.py
@@ -68,6 +68,17 @@ def test_migration_devices():
     assert valid_config["devices"] == ["test", "bla"]
 
 
+def test_migration_tmpfs():
+    """Migrate tmpfs Type."""
+    config = load_json_fixture("basic-addon-config.json")
+
+    config["tmpfs"] = "test:test:rw"
+
+    valid_config = vd.SCHEMA_ADDON_CONFIG(config)
+
+    assert valid_config["tmpfs"]
+
+
 def test_invalid_repository():
     """Validate basic config with invalid repositories."""
     config = load_json_fixture("basic-addon-config.json")