diff --git a/tests/fortify_test.cpp b/tests/fortify_test.cpp
index 554a112..352cac6 100644
--- a/tests/fortify_test.cpp
+++ b/tests/fortify_test.cpp
@@ -120,6 +120,17 @@
 #endif
 
 #ifndef __clang__
+// This test is disabled in clang because clang doesn't properly detect
+// this buffer overflow. TODO: Fix clang.
+TEST_F(DEATHTEST, sprintf2_fortified2) {
+  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
+  foo myfoo;
+  ASSERT_EXIT(sprintf(myfoo.a, "0123456789"),
+              testing::KilledBySignal(SIGABRT), "");
+}
+#endif
+
+#ifndef __clang__
 // These tests are disabled in clang because clang doesn't properly detect
 // this buffer overflow. TODO: Fix clang.
 static int vsprintf_helper2(const char *fmt, ...) {
@@ -516,6 +527,12 @@
 }
 #endif
 
+TEST_F(DEATHTEST, sprintf2_fortified) {
+  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
+  char buf[5];
+  ASSERT_EXIT(sprintf(buf, "aaaaa"), testing::KilledBySignal(SIGABRT), "");
+}
+
 static int vsprintf_helper(const char *fmt, ...) {
   char buf[10];
   va_list va;
@@ -682,6 +699,16 @@
   ASSERT_EXIT(FD_ISSET(0, set), testing::KilledBySignal(SIGABRT), "");
 }
 
+// gtest's ASSERT_EXIT needs a valid expression, but glibc has a do-while macro.
+static void FD_ZERO_function(fd_set* s) { FD_ZERO(s); }
+
+TEST_F(DEATHTEST, FD_ZERO_fortified) {
+  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
+  char buf[1];
+  fd_set* set = (fd_set*) buf;
+  ASSERT_EXIT(FD_ZERO_function(set), testing::KilledBySignal(SIGABRT), "");
+}
+
 TEST_F(DEATHTEST, read_fortified) {
   ::testing::FLAGS_gtest_death_test_style = "threadsafe";
   char buf[1];