diff --git a/tests/setjmp_test.cpp b/tests/setjmp_test.cpp
index c9e9a0c..2f891ec 100644
--- a/tests/setjmp_test.cpp
+++ b/tests/setjmp_test.cpp
@@ -81,8 +81,10 @@
     sigset64_t ss;
     sigemptyset64(&ss);
     sigaddset64(&ss, SIGUSR1 + offset);
+#if defined(__BIONIC__)
     // TIMER_SIGNAL.
     sigaddset64(&ss, __SIGRTMIN);
+#endif
     sigaddset64(&ss, SIGRTMIN + offset);
     return ss;
   }