diff --git a/src/models/database.py b/src/models/database.py
index b527c66..a327cb0 100644
--- a/src/models/database.py
+++ b/src/models/database.py
@@ -200,7 +200,7 @@ class MoldCavityData(Base):
     wall_thickness_range = Column(String(50), nullable=True)
     complexity_score = Column(Float, nullable=True)
     estimated_cycle_time = Column(String(50), nullable=True)
-    manufacturing_tolerance = Column(String(50), nullable=True
+    manufacturing_tolerance = Column(String(50), nullable=True)
     
     # 质量评估
     weld_line_risk = Column(String(50), nullable=True)  # 熔接痕风险