diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 838f51c1..00e956d 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -67,6 +67,7 @@
 #include <asm/semaphore.h>
 #include <asm/atomic.h>
 #include <asm/ldt.h>
+#include <asm/ia32_unistd.h>
 
 #include <net/scm.h>
 #include <net/sock.h>