Fix build.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/test.cc b/test/test.cc
index 983ad852b..4466b74cb 100644
--- a/test/test.cc
+++ b/test/test.cc
@@ -113,7 +113,7 @@ check_file (boost::filesystem::path ref, boost::filesystem::path check)
 {
 	uintmax_t N = boost::filesystem::file_size (ref);
 	BOOST_CHECK_EQUAL (N, boost::filesystem::file_size (check));
-	FILE* ref_file = fopen (ref.c_str(), "rb");
+	FILE* ref_file = fopen_boost (ref, "rb");
 	BOOST_CHECK (ref_file);
 	FILE* check_file = fopen_boost (check, "rb");
 	BOOST_CHECK (check_file);