diff --git a/include/tvm/tir/transform.h b/include/tvm/tir/transform.h
index 73bb2e09f094d..a236c5075d4bc 100644
--- a/include/tvm/tir/transform.h
+++ b/include/tvm/tir/transform.h
@@ -362,8 +362,8 @@ TVM_DLL Pass PlanAndUpdateBufferAllocationLocation();
 
 /*!
  * \brief Substitute all the block vars with the PrimExprs they are bound to, indicated by the
- *        corresponding iter_values in BlockRealize, and then convert the blocks into opaque
- *        ones by removing all the iter_values in BlockRealize and iter_vars in Block.
+ *        corresponding iter_values in BlockRealize, for opaque blocks by removing all
+ *.        the iter_values in BlockRealize and iter_vars in Block.
  * \return The pass.
  */
 TVM_DLL Pass ConvertBlocksToOpaque();