diff --git a/src/utf8_codecvt_facet.cpp b/src/utf8_codecvt_facet.cpp
index c0fd7c0..2e4c532 100644
--- a/src/utf8_codecvt_facet.cpp
+++ b/src/utf8_codecvt_facet.cpp
@@ -12,7 +12,7 @@
 #define BOOST_UTF8_END_NAMESPACE }}}
 #define BOOST_UTF8_DECL BOOST_PROGRAM_OPTIONS_DECL
 
-#include "../../detail/utf8_codecvt_facet.cpp"
+#include <boost/detail/utf8_codecvt_facet.ipp>
 
 
 #undef BOOST_UTF8_BEGIN_NAMESPACE