diff --git a/data/maker/__init__.py b/data/maker/__init__.py
index 50abfd2..42af8f9 100644
--- a/data/maker/__init__.py
+++ b/data/maker/__init__.py
@@ -287,13 +287,15 @@ class Generator (Learner):
                     #-- Sometimes data isn't all it's meant to be
                     if 'format' in self.info and name in self.info['format'] :
                         FORMAT = self.info['format'][name]
+                        SIZE = 10
                     elif _item['type'] in ['DATETIME','TIMESTAMP'] :
                             FORMAT = '%Y-%m-%d %H:%M:%S'
+                            SIZE = 19
                     
                     r[name] = FORMAT
                     _df[name] = pd.to_datetime(_df[name], format=FORMAT) #.astype('datetime64[ns]')
                     if _item['type'] in ['DATETIME','TIMESTAMP']:                   
-                        _df[name] = _df[name].fillna('').astype('datetime64[ns]')
+                        pass #;_df[name] = _df[name].fillna('').astype('datetime64[ns]')
                     else:
                         _df[name] = _df[name].astype(str)
                 except Exception as e: