diff --git a/data/maker/__init__.py b/data/maker/__init__.py
index 21b3017..7f9c0f6 100644
--- a/data/maker/__init__.py
+++ b/data/maker/__init__.py
@@ -480,7 +480,7 @@ class Generator (Learner):
             _df = self._df.copy()
             _df[self.columns] = _iodf[self.columns]
             N += _df.shape[0]
-            if self._states :
+            if self._states and 'post' in self._states:
                 _df = State.apply(_df,self._states['post'])
             # #
             # #@TODO: