diff --git a/v3/src/utf8_codecvt_facet.cpp b/v3/src/utf8_codecvt_facet.cpp
index ed0b422..8a5af1e 100644
--- a/v3/src/utf8_codecvt_facet.cpp
+++ b/v3/src/utf8_codecvt_facet.cpp
@@ -20,7 +20,7 @@
 #define BOOST_UTF8_END_NAMESPACE }}}
 #define BOOST_UTF8_DECL BOOST_FILESYSTEM_DECL
 
-#include "libs/detail/utf8_codecvt_facet.cpp"
+#include <boost/detail/utf8_codecvt_facet.ipp>
 
 #undef BOOST_UTF8_BEGIN_NAMESPACE
 #undef BOOST_UTF8_END_NAMESPACE