diff --git a/sqlalchemy_utils/types/arrow.py b/sqlalchemy_utils/types/arrow.py
index 0ce67bd..e0c85e5 100644
--- a/sqlalchemy_utils/types/arrow.py
+++ b/sqlalchemy_utils/types/arrow.py
@@ -63,7 +63,7 @@ class ArrowType(types.TypeDecorator, ScalarCoercible):
 
     def process_bind_param(self, value, dialect):
         if value:
-            return value.datetime
+            return self._coerce(value).datetime
         return value
 
     def process_result_value(self, value, dialect):