--- syscalls/x86/modify_ldt.c
+++ syscalls/x86/modify_ldt.c
@@ -5,8 +5,15 @@
  * asmlinkage int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
  */
 #include <stdlib.h>
+#include <stdint.h>
 #include <sys/types.h>
 #define __ASSEMBLY__ 1
+typedef int16_t  __s16;
+typedef uint16_t __u16;
+typedef int32_t  __s32;
+typedef uint32_t __u32;
+typedef int64_t  __s64;
+typedef uint64_t __u64;
 #include <asm/ldt.h>
 #include "sanitise.h"
 #include "shm.h"