diff --git a/ayct_backend/campaign/models.py b/ayct_backend/campaign/models.py
index 8664272..a29447b 100644
--- a/ayct_backend/campaign/models.py
+++ b/ayct_backend/campaign/models.py
@@ -2,6 +2,7 @@ from flask_sqlalchemy import SQLAlchemy
 
 campaign_db = SQLAlchemy()
 
-class TwitterAccount(campaign_db.Model):
-    # fields here
-    pass
\ No newline at end of file
+class TwitterCampaign(campaign_db.Model):
+    __tablename__ = 'twitter_campaign'
+
+    campaign_id = campaign_db.Column(campaign_db.Integer, primary_key=True, nullable=False)
diff --git a/ayct_backend/twitter/models.py b/ayct_backend/twitter/models.py
index 8650611..677088f 100644
--- a/ayct_backend/twitter/models.py
+++ b/ayct_backend/twitter/models.py
@@ -6,7 +6,7 @@ twitter_db = SQLAlchemy()
 class TwitterAccount(twitter_db.Model):
     __tablename__ = 'twitter_account'
 
-    account_id = twitter_db.Column(twitter_db.Integer, primary_key=True)
+    account_id = twitter_db.Column(twitter_db.Integer, primary_key=True, nullable=False)
     twitter_user_id = twitter_db.Column(twitter_db.String(16), unique=True, nullable=False)
     username = twitter_db.Column(twitter_db.String(16), unique=True, nullable=False)
     access_token = twitter_db.Column(twitter_db.String(256), nullable=False)