diff --git a/python/paddle/fluid/framework.py b/python/paddle/fluid/framework.py
index 2cdf010926b415665986214100256d6eea086d83..c9a48ea838787c04d1d8185e9a1272213613f906 100644
--- a/python/paddle/fluid/framework.py
+++ b/python/paddle/fluid/framework.py
@@ -854,11 +854,10 @@ class Block(object):
         try:
             start = list(self.ops).index(ops[0])
             end = list(self.ops).index(ops[-1])
+            [self.remove_op(start) for _ in xrange(end - start + 1)]
         except Exception, e:
             raise e
 
-        self.desc.remove_op(start, end + 1)
-
     def slice_ops(self, start, end):
         return self.ops[start:end]