diff --git a/.gitignore b/.gitignore
index b1baa0d..f805a7e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -144,4 +144,7 @@ src/cscapi/_version.py
 *.db
 
 #vscode
-.vscode
\ No newline at end of file
+.vscode
+
+#ddev
+.ddev
\ No newline at end of file
diff --git a/src/cscapi/sql_storage.py b/src/cscapi/sql_storage.py
index 870f6ce..39c8824 100644
--- a/src/cscapi/sql_storage.py
+++ b/src/cscapi/sql_storage.py
@@ -9,6 +9,7 @@
     ForeignKey,
     Integer,
     TEXT,
+    String,
     create_engine,
     delete,
     update,
@@ -50,7 +51,7 @@ class MachineDBModel(Base):
     __tablename__ = "machine_models"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    machine_id = Column(TEXT, unique=True)
+    machine_id = Column(String(256), unique=True)
     token = Column(TEXT)
     password = Column(TEXT)
     scenarios = Column(TEXT)
@@ -109,7 +110,7 @@ class SignalDBModel(Base):
 
     alert_id = Column(Integer, primary_key=True, autoincrement=True)
     created_at = Column(TEXT)
-    machine_id = Column(TEXT)
+    machine_id = Column(String(256))
     scenario_version = Column(TEXT, nullable=True)
     message = Column(TEXT, nullable=True)
     uuid = Column(TEXT)