diff --git a/include/boost/dynamic_bitset/dynamic_bitset.hpp b/include/boost/dynamic_bitset/dynamic_bitset.hpp
index 17299dc7..c86de865 100644
--- a/include/boost/dynamic_bitset/dynamic_bitset.hpp
+++ b/include/boost/dynamic_bitset/dynamic_bitset.hpp
@@ -1417,5 +1417,5 @@ from_block_range( BlockIterator first, BlockIterator last, dynamic_bitset< Block
 
 }
 
-#include "impl/dynamic_bitset.tpp"
+#include "boost/dynamic_bitset/impl/dynamic_bitset.tpp"
 #endif // include guard