diff --git a/rattail_corepos/corepos/office/importing/db/csv.py b/rattail_corepos/corepos/office/importing/db/csv.py
index 753fe61..7222cb5 100644
--- a/rattail_corepos/corepos/office/importing/db/csv.py
+++ b/rattail_corepos/corepos/office/importing/db/csv.py
@@ -48,3 +48,13 @@ class FromCSVToCore(FromCSVToSQLAlchemyMixin, FromFileHandler, ToCoreHandler):
 
     def make_session(self):
         return CoreSession(bind=self.config.corepos_engines[self.dbkey])
+
+    def get_default_keys(self):
+        keys = super().get_default_keys()
+
+        # error will occur for any missing files, when running for all
+        # default models.  so make sure some of these are not default.
+        if 'Change' in keys:
+            keys.remove('Change')
+
+        return keys