diff --git a/aerich/inspectdb/__init__.py b/aerich/inspectdb/__init__.py
index 16da8ec..55e6b32 100644
--- a/aerich/inspectdb/__init__.py
+++ b/aerich/inspectdb/__init__.py
@@ -55,6 +55,8 @@ class Column(BaseModel):
                     default = f"default={self.default.split('::')[0]}, "
                 elif self.default.endswith("()"):
                     default = ""
+                elif self.default == '':
+                    default = 'default=""'
                 else:
                     default = f"default={self.default}, "