pyderasn.py | 8 ++++----

diff --git a/pyderasn.py b/pyderasn.py
index 950c50ba5d2dfac44b02d5c3b6dec6e18dd83e5d0faf1518ff9eb2ce174eb27b..a174e74f2fd2e6f634a52f7707aaf29095ba14ff7a1086b638470e2bea67e79a 100755
--- a/pyderasn.py
+++ b/pyderasn.py
@@ -958,15 +958,15 @@         """Is object ready to be encoded?
         """
         raise NotImplementedError()
 
+    def _assert_ready(self):
+        if not self.ready:
+            raise ObjNotReady(self.__class__.__name__)
+
     @property
     def bered(self):
         """Is either object or any elements inside is BER encoded?
         """
         return self.expl_lenindef or self.lenindef or self.ber_encoded
-
-    def _assert_ready(self):
-        if not self.ready:
-            raise ObjNotReady(self.__class__.__name__)
 
     @property
     def decoded(self):