diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index 55b9fc1..8a9f994 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -321,3 +321,4 @@
 SYSCALL(spu_create)
 COMPAT_SYS(pselect6)
 COMPAT_SYS(ppoll)
+SYSCALL(unshare)
diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index a40cdff..3555699 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -300,8 +300,9 @@
 #define __NR_spu_create		279
 #define __NR_pselect6		280
 #define __NR_ppoll		281
+#define __NR_unshare		282
 
-#define __NR_syscalls		282
+#define __NR_syscalls		283
 
 #ifdef __KERNEL__
 #define __NR__exit __NR_exit