diff --git a/fastsql/core.py b/fastsql/core.py
index 8efa70f..e60f183 100644
--- a/fastsql/core.py
+++ b/fastsql/core.py
@@ -50,7 +50,7 @@ def xtra(self, **kwargs):
         self.xtra_id = kwargs
 
 # %% ../00_core.ipynb 9
-_type_map = {int: sa.Integer, str: sa.String, bool: sa.Boolean}
+_type_map = {int: sa.Integer, str: sa.String, bool: sa.Boolean, float: sa.Float}
 def _column(name, typ, primary=False): return sa.Column(name, _type_map[typ], primary_key=primary)
 
 # %% ../00_core.ipynb 10