diff --git a/paddle/fluid/framework/block_desc.cc b/paddle/fluid/framework/block_desc.cc
index 9f753478d8ecf12441d4b1745a9f6750a1038e31..1b6f656a006489485a55b5c13b5e2de93c3da0ed 100644
--- a/paddle/fluid/framework/block_desc.cc
+++ b/paddle/fluid/framework/block_desc.cc
@@ -143,7 +143,7 @@ OpDesc *BlockDesc::InsertOp(size_t index) {
 }
 
 void BlockDesc::RemoveOp(size_t s, size_t e) {
-  if (ops_.begin() + s == ops_.end() || ops_.begin() + e == ops_.end()) {
+  if (ops_.begin() + s >= ops_.end() || ops_.begin() + e > ops_.end()) {
     return;
   }
   need_update_ = true;