diff --git a/src/memory/memory.c b/src/memory/memory.c
index db8c3bd..fef2605 100644
--- a/src/memory/memory.c
+++ b/src/memory/memory.c
@@ -90,7 +90,8 @@ static void add_frame_node(multiboot_memory_map_t *mmmt)
 	 */
 	if (KERNEL_START <= start_addr && KERNEL_END > start_addr &&
 	    KERNEL_END <= end_addr) {
-		len = len - (KERNEL_END - start_addr);
+		len = ROUND_CEIL(len - (KERNEL_END - start_addr), PAGE_SIZE) -
+		      PAGE_SIZE; // cringe but ROUND_FLOOR is un poquito crampte
 		start_addr = ROUND_CEIL(KERNEL_END, PAGE_SIZE);
 	}
 	end_addr = ROUND_CEIL(start_addr + len, PAGE_SIZE);