diff --git a/sqlalchemy_batch_inserts/__init__.py b/sqlalchemy_batch_inserts/__init__.py
index e3e7289..384ee94 100644
--- a/sqlalchemy_batch_inserts/__init__.py
+++ b/sqlalchemy_batch_inserts/__init__.py
@@ -4,7 +4,7 @@
 import sqlalchemy
 
 
-__version__ = "0.0.4"
+__version__ = "0.0.5"
 
 
 def _group_models_by_base_mapper(initial_models):
@@ -19,7 +19,7 @@ def _get_column_python_type(column):
 
 
 def _has_normal_id_primary_key(base_mapper):
-    """Check if the primary key for base_mapper is an auto-incrementing integer `id` column"""
+    """Check if the primary key for base_mapper is an auto-incrementing integer column"""
     primary_key_cols = base_mapper.primary_key
     if len(primary_key_cols) != 1:
         return False
@@ -32,16 +32,23 @@ def _has_normal_id_primary_key(base_mapper):
         python_column_type = None
 
     return (
-        primary_key_col.name == "id"
-        and python_column_type == int
-        and primary_key_col.autoincrement in ("auto", True)
-        and primary_key_col.table == base_mapper.local_table
+            python_column_type == int
+            and primary_key_col.autoincrement in ("auto", True)
+            and primary_key_col.table == base_mapper.local_table
     )
 
 
+def _get_primary_key_name(base_mapper):
+    primary_key_cols = base_mapper.primary_key
+    [primary_key_col] = primary_key_cols
+    return primary_key_col.name
+
+
 def _get_id_sequence_name(base_mapper):
-    assert _has_normal_id_primary_key(base_mapper), "_get_id_sequence_name only supports id primary keys"
-    return "%s_id_seq" % base_mapper.entity.__tablename__
+    assert _has_normal_id_primary_key(base_mapper), \
+        "_get_id_sequence_name only supports single auto increment primary keys"
+    primary_key = _get_primary_key_name(base_mapper)
+    return f"{base_mapper.entity.__tablename__}_{primary_key}_seq"
 
 
 def tuples_to_scalar_list(tuples):
@@ -153,11 +160,13 @@ def batch_populate_primary_keys(
             if skip_unsupported_models:
                 continue
             else:
-                raise AssertionError("Expected models to have auto-incrementing `id` primary key")
+                raise AssertionError("Expected models to have auto-incrementing primary key")
+
+        primary_key = _get_primary_key_name(base_mapper)
 
         # In general, batch_populate_primary_keys shouldn't assume anything about how people are creating
         # models - it is possible for models to have their ids already specified.
-        models = [model for model in models if model.id is None]
+        models = [model for model in models if getattr(model, primary_key) is None]
 
         if skip_if_single_model and len(models) <= 1:
             continue
@@ -166,7 +175,7 @@ def batch_populate_primary_keys(
 
         models = sorted(models, key=lambda model: sqlalchemy.inspect(model).insert_order)
         for id_, model in zip(new_ids, models):
-            model.id = id_
+            setattr(model, primary_key, id_)
 
 
 def enable_batch_inserting(sqla_session):