diff --git a/lib/libc/musl/arch/riscv32/bits/signal.h b/lib/libc/musl/arch/riscv32/bits/signal.h
index 271e7da6b66f877a56a9ccec6dda4c417423ec1a..6a53feb7d09f6620e83e661fff6e9ca23d33fa06 100644
--- a/lib/libc/musl/arch/riscv32/bits/signal.h
+++ b/lib/libc/musl/arch/riscv32/bits/signal.h
@@ -78,7 +78,6 @@ typedef struct __ucontext
 #define SA_RESTART   0x10000000
 #define SA_NODEFER   0x40000000
 #define SA_RESETHAND 0x80000000
-#define SA_RESTORER  0x04000000
 
 #endif