diff --git a/test/flat_map_unittest.cpp b/test/flat_map_unittest.cpp
index 693858c4..99f30e41 100644
--- a/test/flat_map_unittest.cpp
+++ b/test/flat_map_unittest.cpp
@@ -287,7 +287,7 @@ TEST_F(FlatMapTest, make_sure_all_methods_compile) {
     ASSERT_EQ(20, m1[2]);
     ASSERT_EQ(2u, m1.size());
     m1.insert(1, 100);
-    m1.insert(3, 30);
+    m1.insert({3, 30});
     ASSERT_EQ(100, m1[1]);
     ASSERT_EQ(3u, m1.size());
     ASSERT_TRUE(m1.seek(3));