diff --git a/paddle/fluid/framework/block_desc.h b/paddle/fluid/framework/block_desc.h
index 5325583b19383fc61f224f788f4a55c2cc4ac5cf..e9d98fc86f11ad8809e6229c03af7967222a2b5b 100644
--- a/paddle/fluid/framework/block_desc.h
+++ b/paddle/fluid/framework/block_desc.h
@@ -88,7 +88,7 @@ class BlockDesc {
   OpDesc *PrependOp();
 
   void PrependAllocatedOp(std::unique_ptr<OpDesc> &&op_desc);
-  
+
   void RemoveOp(size_t s, size_t e);
 
   std::vector<OpDesc *> AllOps() const;