diff --git a/migrate/changeset/schema.py b/migrate/changeset/schema.py
index a0e42cc..931ef7b 100644
--- a/migrate/changeset/schema.py
+++ b/migrate/changeset/schema.py
@@ -353,8 +353,14 @@ class ColumnDelta(six.with_metaclass(MyMeta, DictMixin, sqlalchemy.schema.Schema
         self.process_column(self.result_column)
 
         # create an instance of class type if not yet
-        if 'type' in diffs and callable(self.result_column.type):
-            self.result_column.type = self.result_column.type()
+        if 'type' in diffs:
+            if callable(self.result_column.type):
+                self.result_column.type = self.result_column.type()
+            if self.result_column.autoincrement and \
+                    not issubclass(
+                        self.result_column.type._type_affinity,
+                        sqlalchemy.Integer):
+                self.result_column.autoincrement = False
 
         # add column to the table
         if self.table is not None and self.alter_metadata:
diff --git a/migrate/tests/changeset/test_changeset.py b/migrate/tests/changeset/test_changeset.py
index 57d0380..93e9965 100644
--- a/migrate/tests/changeset/test_changeset.py
+++ b/migrate/tests/changeset/test_changeset.py
@@ -687,12 +687,25 @@ class TestColumnChange(fixture.DB):
         self.assertTrue(isinstance(self.table.c.id.type, Integer))
         self.assertEqual(self.table.c.id.nullable, False)
 
+        # SQLAlchemy 1.1 adds a third state to "autoincrement" called
+        # "auto".
+        self.assertTrue(self.table.c.id.autoincrement in ('auto', True))
+
         if not self.engine.name == 'firebird':
             self.table.c.id.alter(type=String(20))
             self.assertEqual(self.table.c.id.nullable, False)
+
+            # a rule makes sure that autoincrement is set to False
+            # when we change off of Integer
+            self.assertEqual(self.table.c.id.autoincrement, False)
             self.refresh_table(self.table.name)
             self.assertTrue(isinstance(self.table.c.id.type, String))
 
+            # note that after reflection, "autoincrement" is likely
+            # to change back to a database-generated value.   Should be
+            # False or "auto".  if True, it's a bug; at least one of these
+            # exists prior to SQLAlchemy 1.1.3
+
     @fixture.usedb()
     def test_default(self):
         """Can change a column's server_default value (DefaultClauses only)