diff --git a/murano/db/migration/alembic_migrations/versions/013_increase_description_text_size.py b/murano/db/migration/alembic_migrations/versions/013_increase_description_text_size.py
new file mode 100644
index 00000000..5140d568
--- /dev/null
+++ b/murano/db/migration/alembic_migrations/versions/013_increase_description_text_size.py
@@ -0,0 +1,61 @@
+# Copyright 2016 OpenStack Foundation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Increase the size of the text columns storing object model
+
+Revision ID: 013
+Revises: 012
+Create Date: 2016-04-12 15:46:12.251155
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '013'
+down_revision = '012'
+
+from alembic import op
+import sqlalchemy as sa
+import sqlalchemy.dialects.mysql as sa_mysql
+
+MYSQL_ENGINE = 'InnoDB'
+MYSQL_CHARSET = 'utf8'
+
+
+def upgrade():
+    engine = op.get_bind()
+    if engine.dialect.dialect_description.startswith('mysql'):
+        with op.batch_alter_table('session') as batch_op:
+            batch_op.alter_column('description',
+                                  type_=sa_mysql.LONGTEXT())
+        with op.batch_alter_table('environment') as batch_op:
+            batch_op.alter_column('description',
+                                  type_=sa_mysql.LONGTEXT())
+        with op.batch_alter_table('environment-template') as batch_op:
+            batch_op.alter_column('description',
+                                  type_=sa_mysql.LONGTEXT())
+
+
+def downgrade():
+    engine = op.get_bind()
+    if engine.dialect.dialect_description.startswith('mysql'):
+        with op.batch_alter_table('session') as batch_op:
+            batch_op.alter_column('description',
+                                  type_=sa.TEXT())
+        with op.batch_alter_table('environment') as batch_op:
+            batch_op.alter_column('description',
+                                  type_=sa.TEXT())
+        with op.batch_alter_table('environment-template') as batch_op:
+            batch_op.alter_column('description',
+                                  type_=sa.TEXT())