diff --git a/lib/audit.c b/lib/audit.c
index 8c21625..3b1289f 100644
--- a/lib/audit.c
+++ b/lib/audit.c
@@ -28,8 +28,10 @@
 	switch(syscall) {
 	case __NR_open:
 		return 2;
+#ifdef __NR_openat
 	case __NR_openat:
 		return 3;
+#endif
 #ifdef __NR_socketcall
 	case __NR_socketcall:
 		return 4;