diff --git a/libc/kernel/uapi/asm-arm/asm/signal.h b/libc/kernel/uapi/asm-arm/asm/signal.h
index 51a3022..5f7e0c5 100644
--- a/libc/kernel/uapi/asm-arm/asm/signal.h
+++ b/libc/kernel/uapi/asm-arm/asm/signal.h
@@ -59,17 +59,8 @@
 #define __SIGRTMIN 32
 #define __SIGRTMAX _KERNEL__NSIG
 #define SIGSWI 32
-#define SA_NOCLDSTOP 0x00000001
-#define SA_NOCLDWAIT 0x00000002
-#define SA_SIGINFO 0x00000004
 #define SA_THIRTYTWO 0x02000000
 #define SA_RESTORER 0x04000000
-#define SA_ONSTACK 0x08000000
-#define SA_RESTART 0x10000000
-#define SA_NODEFER 0x40000000
-#define SA_RESETHAND 0x80000000
-#define SA_NOMASK SA_NODEFER
-#define SA_ONESHOT SA_RESETHAND
 #define MINSIGSTKSZ 2048
 #define SIGSTKSZ 8192
 #include <asm-generic/signal-defs.h>
diff --git a/libc/kernel/uapi/asm-arm/asm/unistd-common.h b/libc/kernel/uapi/asm-arm/asm/unistd-common.h
index 060d626..6068bd2 100644
--- a/libc/kernel/uapi/asm-arm/asm/unistd-common.h
+++ b/libc/kernel/uapi/asm-arm/asm/unistd-common.h
@@ -412,4 +412,5 @@
 #define __NR_pidfd_getfd (__NR_SYSCALL_BASE + 438)
 #define __NR_faccessat2 (__NR_SYSCALL_BASE + 439)
 #define __NR_process_madvise (__NR_SYSCALL_BASE + 440)
+#define __NR_epoll_pwait2 (__NR_SYSCALL_BASE + 441)
 #endif