diff --git a/libc/platform/bionic/reserved_signals.h b/libc/platform/bionic/reserved_signals.h
index 3c5bc02..c90fc06 100644
--- a/libc/platform/bionic/reserved_signals.h
+++ b/libc/platform/bionic/reserved_signals.h
@@ -47,8 +47,10 @@
 // If you change this, also change __ndk_legacy___libc_current_sigrtmin
 // in <android/legacy_signal_inlines.h> to match.
 
+#define BIONIC_SIGNAL_POSIX_TIMERS (__SIGRTMIN + 0)
 #define BIONIC_SIGNAL_DEBUGGER (__SIGRTMIN + 3)
 #define BIONIC_SIGNAL_PROFILER (__SIGRTMIN + 4)
+#define BIONIC_SIGNAL_ART_PROFILER (__SIGRTMIN + 6)
 #define BIONIC_SIGNAL_FDTRACK (__SIGRTMIN + 7)
 
 #define __SIGRT_RESERVED 8