diff --git a/tests/stdlib_test.cpp b/tests/stdlib_test.cpp
index c7b2ad8..bb1fd7c 100644
--- a/tests/stdlib_test.cpp
+++ b/tests/stdlib_test.cpp
@@ -456,12 +456,12 @@
 
 TEST(stdlib, mkostemp64) {
   MyTemporaryFile tf([](char* path) { return mkostemp64(path, O_CLOEXEC); });
-  AssertCloseOnExec(tf.fd, true);
+  ASSERT_TRUE(CloseOnExec(tf.fd));
 }
 
 TEST(stdlib, mkostemp) {
   MyTemporaryFile tf([](char* path) { return mkostemp(path, O_CLOEXEC); });
-  AssertCloseOnExec(tf.fd, true);
+  ASSERT_TRUE(CloseOnExec(tf.fd));
 }
 
 TEST(stdlib, mkstemp64) {