diff --git a/daemon/face/ndnlp-sequence-generator.hpp b/daemon/face/ndnlp-sequence-generator.hpp
index a3baa6b..3019933 100644
--- a/daemon/face/ndnlp-sequence-generator.hpp
+++ b/daemon/face/ndnlp-sequence-generator.hpp
@@ -54,7 +54,7 @@
 SequenceBlock::operator[](size_t pos) const
 {
   if (pos >= m_count)
-    throw std::out_of_range("pos");
+    BOOST_THROW_EXCEPTION(std::out_of_range("pos"));
   return m_start + static_cast<uint64_t>(pos);
 }