diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index 51f0893..c692a19 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -7,7 +7,6 @@
 #include <stdio.h>
 #include <errno.h>
 #include <signal.h>
-#include <linux/unistd.h>
 #include <sys/mman.h>
 #include <sys/wait.h>
 #include <sys/mman.h>
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index cb9ab54..9b34fe6 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -14,7 +14,7 @@
 #include <sys/mman.h>
 #include <sys/user.h>
 #include <sys/time.h>
-#include <asm/unistd.h>
+#include <sys/syscall.h>
 #include <asm/types.h>
 #include "user.h"
 #include "sysdep/ptrace.h"
diff --git a/arch/um/os-Linux/tls.c b/arch/um/os-Linux/tls.c
index 9f7999f..16215b9 100644
--- a/arch/um/os-Linux/tls.c
+++ b/arch/um/os-Linux/tls.c
@@ -1,7 +1,7 @@
 #include <errno.h>
+#include <unistd.h>
 #include <sys/ptrace.h>
 #include <sys/syscall.h>
-#include <unistd.h>
 #include <asm/ldt.h>
 #include "sysdep/tls.h"
 #include "uml-config.h"