diff --git a/test/link_ext_test.cpp b/test/link_ext_test.cpp
index eeb1160..31adf87 100644
--- a/test/link_ext_test.cpp
+++ b/test/link_ext_test.cpp
@@ -17,6 +17,7 @@ int f(std::size_t hash1, int* x1) {
     std::vector<std::size_t> x;
     x.push_back(*x1);
     HASH_NAMESPACE::hash<std::vector<std::size_t> > vector_hasher;
-    return vector_hasher(x) != HASH_NAMESPACE::hash_value(x);
+    BOOST_TEST(vector_hasher(x) == HASH_NAMESPACE::hash_value(x));
+    return boost::report_errors();
 }