diff --git a/libc/kernel/uapi/asm-arm/asm/setup.h b/libc/kernel/uapi/asm-arm/asm/setup.h
index 672a72a..b4da2d1 100644
--- a/libc/kernel/uapi/asm-arm/asm/setup.h
+++ b/libc/kernel/uapi/asm-arm/asm/setup.h
@@ -19,7 +19,7 @@
 #ifndef _UAPI__ASMARM_SETUP_H
 #define _UAPI__ASMARM_SETUP_H
 #include <linux/types.h>
-#define COMMAND_LINE_SIZE 1024
+#define COMMAND_LINE_SIZE 2048
 #define ATAG_NONE 0x00000000
 struct tag_header {
   __u32 size;
diff --git a/libc/kernel/uapi/asm-arm/asm/unistd-common.h b/libc/kernel/uapi/asm-arm/asm/unistd-common.h
index 6e7faec..060d626 100644
--- a/libc/kernel/uapi/asm-arm/asm/unistd-common.h
+++ b/libc/kernel/uapi/asm-arm/asm/unistd-common.h
@@ -411,4 +411,5 @@
 #define __NR_openat2 (__NR_SYSCALL_BASE + 437)
 #define __NR_pidfd_getfd (__NR_SYSCALL_BASE + 438)
 #define __NR_faccessat2 (__NR_SYSCALL_BASE + 439)
+#define __NR_process_madvise (__NR_SYSCALL_BASE + 440)
 #endif