diff --git a/arch/x86/include/uapi/asm/sembuf.h b/arch/x86/include/uapi/asm/sembuf.h
index ee50c801f7b7..cc2d6a3aeae7 100644
--- a/arch/x86/include/uapi/asm/sembuf.h
+++ b/arch/x86/include/uapi/asm/sembuf.h
@@ -13,12 +13,12 @@
 struct semid64_ds {
 	struct ipc64_perm sem_perm;	/* permissions .. see ipc.h */
 	__kernel_time_t	sem_otime;	/* last semop time */
-	unsigned long	__unused1;
+	__kernel_ulong_t __unused1;
 	__kernel_time_t	sem_ctime;	/* last change time */
-	unsigned long	__unused2;
-	unsigned long	sem_nsems;	/* no. of semaphores in array */
-	unsigned long	__unused3;
-	unsigned long	__unused4;
+	__kernel_ulong_t __unused2;
+	__kernel_ulong_t sem_nsems;	/* no. of semaphores in array */
+	__kernel_ulong_t __unused3;
+	__kernel_ulong_t __unused4;
 };
 
 #endif /* _ASM_X86_SEMBUF_H */