diff --git a/src/basic/missing_syscall.h b/src/basic/missing_syscall.h
index bf282ac3f0..34b8956a12 100644
--- a/src/basic/missing_syscall.h
+++ b/src/basic/missing_syscall.h
@@ -394,6 +394,8 @@ static inline int missing_bpf(int cmd, union bpf_attr *attr, size_t size) {
 #      define __NR_pkey_mprotect 394
 #    elif defined __aarch64__
 #      define __NR_pkey_mprotect 394
+#    elif defined __powerpc__
+#      define __NR_pkey_mprotect 386
 #    elif defined _MIPS_SIM
 #      if _MIPS_SIM == _MIPS_SIM_ABI32
 #        define __NR_pkey_mprotect 4363