diff --git a/data/database.py b/data/database.py
index 36820053c..8a7a87004 100644
--- a/data/database.py
+++ b/data/database.py
@@ -527,7 +527,7 @@ class LoginService(BaseModel):
 
 
 class TeamSync(BaseModel):
-  team = ForeignKeyField(Team)
+  team = ForeignKeyField(Team, unique=True)
 
   transaction_id = CharField()
   last_updated = DateTimeField(null=True, index=True)
diff --git a/data/migrations/versions/be8d1c402ce0_add_teamsync_table.py b/data/migrations/versions/be8d1c402ce0_add_teamsync_table.py
new file mode 100644
index 000000000..ac9467767
--- /dev/null
+++ b/data/migrations/versions/be8d1c402ce0_add_teamsync_table.py
@@ -0,0 +1,39 @@
+"""Add TeamSync table
+
+Revision ID: be8d1c402ce0
+Revises: e2894a3a3c19
+Create Date: 2017-02-23 13:34:52.356812
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'be8d1c402ce0'
+down_revision = 'e2894a3a3c19'
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+def upgrade(tables):
+    ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('teamsync',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('team_id', sa.Integer(), nullable=False),
+    sa.Column('transaction_id', sa.String(length=255), nullable=False),
+    sa.Column('last_updated', sa.DateTime(), nullable=True),
+    sa.Column('service_id', sa.Integer(), nullable=False),
+    sa.Column('config', sa.Text(), nullable=False),
+    sa.ForeignKeyConstraint(['service_id'], ['loginservice.id'], name=op.f('fk_teamsync_service_id_loginservice')),
+    sa.ForeignKeyConstraint(['team_id'], ['team.id'], name=op.f('fk_teamsync_team_id_team')),
+    sa.PrimaryKeyConstraint('id', name=op.f('pk_teamsync'))
+    )
+    op.create_index('teamsync_last_updated', 'teamsync', ['last_updated'], unique=False)
+    op.create_index('teamsync_service_id', 'teamsync', ['service_id'], unique=False)
+    op.create_index('teamsync_team_id', 'teamsync', ['team_id'], unique=True)
+    ### end Alembic commands ###
+
+
+def downgrade(tables):
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('teamsync')
+    ### end Alembic commands ###