diff --git a/pyaml/tuning_tools/response_matrix_data.py b/pyaml/tuning_tools/response_matrix_data.py
index ce9fd4d4..0a4a222f 100644
--- a/pyaml/tuning_tools/response_matrix_data.py
+++ b/pyaml/tuning_tools/response_matrix_data.py
@@ -2,6 +2,7 @@
 from pathlib import Path
 
 from pyaml.configuration.factory import Factory
+from pyaml.validation import SchemaValidator
 
 from .. import PyAMLException
 from ..configuration.fileloader import load
@@ -31,7 +32,6 @@ class ResponseMatrixData(DynamicValidation):
     matrix: list[list[float]]
     observable_names: list[str]
     variable_names: list[str] | None = None
-    type: str | None = None
 
     @staticmethod
     def load(filename: str) -> "ResponseMatrixData":
@@ -55,6 +55,7 @@ def load(filename: str) -> "ResponseMatrixData":
         path = Path(filename)
         if path.exists():
             config_dict = load(str(path.resolve()))
+            SchemaValidator.validate(config_dict)
             return Factory.build(config_dict, ignore_external=False)
         else:
             raise PyAMLException(f"{filename}: file not found")
diff --git a/tests/tuning_tools/test_tuning_orm.py b/tests/tuning_tools/test_tuning_orm.py
index faa8def0..553bce16 100644
--- a/tests/tuning_tools/test_tuning_orm.py
+++ b/tests/tuning_tools/test_tuning_orm.py
@@ -1,4 +1,5 @@
 import logging
+import tempfile
 from pathlib import Path
 
 import numpy as np
@@ -24,3 +25,10 @@ def test_tuning_orm():
     orm_data = orm.get()
     orm_shape = np.array(orm_data["matrix"]).shape
     assert orm_shape == (2 * len(bpms), 8)
+
+    with tempfile.NamedTemporaryFile(mode="w", suffix=".json", prefix="orm_") as f:
+        # save file
+        orm.save(save_path=f.name)
+
+        # load saved file
+        element_holder.orbit.load(f.name)