diff --git a/libc/kernel/uapi/asm-generic/siginfo.h b/libc/kernel/uapi/asm-generic/siginfo.h
index af3d98e..166193b 100644
--- a/libc/kernel/uapi/asm-generic/siginfo.h
+++ b/libc/kernel/uapi/asm-generic/siginfo.h
@@ -194,7 +194,8 @@
 #define TRAP_TRACE 2
 #define TRAP_BRANCH 3
 #define TRAP_HWBKPT 4
-#define NSIGTRAP 4
+#define TRAP_UNK 5
+#define NSIGTRAP 5
 #define CLD_EXITED 1
 #define CLD_KILLED 2
 #define CLD_DUMPED 3