diff --git a/mem.c b/mem.c
index a133b00a..5a11e186 100644
--- a/mem.c
+++ b/mem.c
@@ -95,6 +95,9 @@ static const struct xlat mmap_prot[] = {
 #endif
 #ifdef PROT_GROWSUP
 	{ PROT_GROWSUP, "PROT_GROWSUP"	},
+#endif
+#ifdef PROT_SAO
+	{ PROT_SAO,	"PROT_SAO"	},
 #endif
 	{ 0,		NULL		},
 };