diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 4377cfe..bf9d7b6 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -37,6 +37,7 @@
 #include <linux/uaccess.h>
 #include <linux/io.h>
 #include <linux/ftrace.h>
+#include <linux/syscalls.h>
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -621,7 +622,7 @@
 	return ret;
 }
 
-long sys_arch_prctl(int option, unsigned long addr)
+SYSCALL_DEFINE2(arch_prctl, int, option, unsigned long, addr)
 {
 	return do_arch_prctl(current, option, addr);
 }
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index 3c2dd87..42369fa 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -7,6 +7,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/syscalls.h>
 #include <linux/uaccess.h>
 #include <asm/prctl.h> /* XXX This should get the constants from libc */
 #include <os.h>
@@ -74,7 +75,7 @@
 	return ret;
 }
 
-long sys_arch_prctl(int option, unsigned long addr)
+SYSCALL_DEFINE2(arch_prctl, int, option, unsigned long, addr)
 {
 	return arch_prctl(current, option, (unsigned long __user *) addr);
 }