1 files changed, 1 insertions, 1 deletions
diff --git a/extras/mini-os/mm.c b/extras/mini-os/mm.c
index 980e32c0a2..03fb3e9ab5 100644
--- a/extras/mini-os/mm.c
+++ b/extras/mini-os/mm.c
@@ -687,7 +687,7 @@ void *map_frames(unsigned long *f, unsigned long n)
     /* Find a run of n contiguous frames */
     for (x = 0; x <= 1024 - n; x += y + 1) {
         for (y = 0; y < n; y++)
-            if (demand_map_pgt[y] & _PAGE_PRESENT)
+            if (demand_map_pgt[x+y] & _PAGE_PRESENT)
                 break;
         if (y == n)
             break;