diff --git a/mm/nommu.c b/mm/nommu.c
index 089982f..63fa17d 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -162,7 +162,7 @@
 		}
 		if (vmas)
 			vmas[i] = vma;
-		start += PAGE_SIZE;
+		start = (start + PAGE_SIZE) & PAGE_MASK;
 	}
 
 	return i;