diff --git a/modules/weko-user-profiles/tests/test_forms.py b/modules/weko-user-profiles/tests/test_forms.py
index 579a5700c0..c4f10b920d 100644
--- a/modules/weko-user-profiles/tests/test_forms.py
+++ b/modules/weko-user-profiles/tests/test_forms.py
@@ -386,6 +386,40 @@ def test_validate_username(self,app,client,register_form,users,db):
         res = client.post("/test_form/profile_form",data=data)
         assert res.data == bytes("invalid","utf-8")
 
+    def test_init_storage_fields_removed_when_disabled(self, app):
+        """Test that storage fields are removed when feature flag is disabled."""
+        # Set the config to disable storage modification
+        app.config.update(
+            WEKO_RECORDS_UI_USER_STORAGE_MODIFICATION_ENABLED=False
+        )
+        
+        with app.app_context():
+            # Create the form
+            form = ProfileForm()
+            
+            # Verify storage-related fields are removed
+            assert not hasattr(form, 'access_key')
+            assert not hasattr(form, 'secret_key')
+            assert not hasattr(form, 's3_endpoint_url')
+            assert not hasattr(form, 's3_region_name')
+
+    def test_init_storage_fields_present_when_enabled(self, app):
+        """Test that storage fields are present when feature flag is enabled."""
+        # Set the config to enable storage modification
+        app.config.update(
+            WEKO_RECORDS_UI_USER_STORAGE_MODIFICATION_ENABLED=True
+        )
+        
+        with app.app_context():
+            # Create the form
+            form = ProfileForm()
+            
+            # Verify storage-related fields are present
+            assert hasattr(form, 'access_key')
+            assert hasattr(form, 'secret_key')
+            assert hasattr(form, 's3_endpoint_url')
+            assert hasattr(form, 's3_region_name')
+
 # def custom_profile_form_factory(profile_cls):
 # .tox/c1/bin/pytest --cov=weko_user_profiles tests/test_forms.py::test_custom_profile_form_factory -vv -s --cov-branch --cov-report=term --cov-report=html --basetemp=/code/modules/weko-user-profiles/.tox/c1/tmp
 class DummyClass: