diff --git a/sys/amd64/linux/syscalls.conf b/sys/amd64/linux/syscalls.conf
--- a/sys/amd64/linux/syscalls.conf
+++ b/sys/amd64/linux/syscalls.conf
@@ -3,7 +3,6 @@
 sysproto_h=_LINUX_SYSPROTO_H_
 syshdr="linux_syscall.h"
 syssw="linux_sysent.c"
-sysmk="/dev/null"
 syscallprefix="LINUX_SYS_"
 switchname="linux_sysent"
 namesname="linux_syscallnames"
diff --git a/sys/amd64/linux32/syscalls.conf b/sys/amd64/linux32/syscalls.conf
--- a/sys/amd64/linux32/syscalls.conf
+++ b/sys/amd64/linux32/syscalls.conf
@@ -3,7 +3,6 @@
 sysproto_h=_LINUX32_SYSPROTO_H_
 syshdr="linux32_syscall.h"
 syssw="linux32_sysent.c"
-sysmk="/dev/null"
 syscallprefix="LINUX32_SYS_"
 switchname="linux32_sysent"
 namesname="linux32_syscallnames"
diff --git a/sys/arm64/linux/syscalls.conf b/sys/arm64/linux/syscalls.conf
--- a/sys/arm64/linux/syscalls.conf
+++ b/sys/arm64/linux/syscalls.conf
@@ -3,7 +3,6 @@
 sysproto_h=_LINUX_SYSPROTO_H_
 syshdr="linux_syscall.h"
 syssw="linux_sysent.c"
-sysmk="/dev/null"
 syscallprefix="LINUX_SYS_"
 switchname="linux_sysent"
 namesname="linux_syscallnames"
diff --git a/sys/compat/freebsd32/syscalls.conf b/sys/compat/freebsd32/syscalls.conf
--- a/sys/compat/freebsd32/syscalls.conf
+++ b/sys/compat/freebsd32/syscalls.conf
@@ -3,7 +3,6 @@
 sysproto_h=_FREEBSD32_SYSPROTO_H_
 syshdr="freebsd32_syscall.h"
 syssw="freebsd32_sysent.c"
-sysmk="/dev/null"
 syscallprefix="FREEBSD32_SYS_"
 switchname="freebsd32_sysent"
 namesname="freebsd32_syscallnames"
diff --git a/sys/i386/linux/syscalls.conf b/sys/i386/linux/syscalls.conf
--- a/sys/i386/linux/syscalls.conf
+++ b/sys/i386/linux/syscalls.conf
@@ -3,7 +3,6 @@
 sysproto_h=_LINUX_SYSPROTO_H_
 syshdr="linux_syscall.h"
 syssw="linux_sysent.c"
-sysmk="/dev/null"
 syscallprefix="LINUX_SYS_"
 switchname="linux_sysent"
 namesname="linux_syscallnames"
diff --git a/sys/kern/Makefile b/sys/kern/Makefile
--- a/sys/kern/Makefile
+++ b/sys/kern/Makefile
@@ -2,7 +2,6 @@
 #
 # Makefile for init_sysent
 
-SYSENT_CONF=
 GENERATED=	init_sysent.c			\
 		syscalls.c			\
 		systrace_args.c			\
diff --git a/sys/kern/syscalls.conf b/sys/kern/syscalls.conf
new file mode 100644
--- /dev/null
+++ b/sys/kern/syscalls.conf
@@ -0,0 +1 @@
+sysmk="../sys/syscall.mk"
diff --git a/sys/tools/makesyscalls.lua b/sys/tools/makesyscalls.lua
--- a/sys/tools/makesyscalls.lua
+++ b/sys/tools/makesyscalls.lua
@@ -46,7 +46,7 @@
 	sysproto = "../sys/sysproto.h",
 	sysproto_h = "_SYS_SYSPROTO_H_",
 	syshdr = "../sys/syscall.h",
-	sysmk = "../sys/syscall.mk",
+	sysmk = "/dev/null",
 	syssw = "init_sysent.c",
 	syscallprefix = "SYS_",
 	switchname = "sysent",